VS9 crashes when rendering 4K and using transitions

[Kelo]

I have VS9.5 Ultimate. Usually it works pretty good, even with my 4KUHD files (well some occasional crashes), but when I add transitions between these clips, program crashes during rendering or project playback. I use mostly crossfade transition, but it looks like it does not depend on transition type. Problematic clips are from Panasonic Lumix GX8:
H.264 High Profile
24 bits 3840x2160
25.0 fps
Data rate 105600 Kbps
MPEG AAC Audio
48000 Hz 16 bit Stereo
128 Kbps
I can render movie if transitions are not used. If I add transitions, no matter which transition, VS crashes.
I have worked for weeks with a 24 min video, which is nearly ready. Tried all the tricks I can imagine and suggested in this forum, but can't get over this problem. I uninstalled VS9 and installed it again.
Any ideas what to do?

[Ken Berry]

I know your computer is a powerful one, and I know you say you tried all the tricks suggested here, but can you confirm you tried this using SmartProxy i.e. creating standard definition copies ("proxies") of your UHD originals, doing your editing on the proxies but rendering out in full 4K?

[Kelo]

That was quick reaction. Yes, I have tried using Smartproxy with different settings and without Smartproxy.

[aljimenez]

I have a Panasonic LUMIX GH4 that produces very high bitrate 4K like you have and my VS X9 handles transitions without crashing, so something unique here. Please give details as to how I might reproduce this problem. In particular, where and which transition you are using, are you cutting the video clip and adding a transition in between, etc. The more precisely you describe the crash and whatsteps you did before crashing the better we might be able to help

[Kelo]

Behaviour is not totally constant. Typically I add a 4K clip, trim the length, add a second clip, trim the length, then I drop a transition between them, typically 1 second crossfade. So that the transition is from 4K clip to other 4K clip. Sometimes I can render a few clips, but not always. The more clips, the more sure crash. If I add for example a short black color between clips and fade to that color, rendering goes ok.
I made also a ticket for Corel support. He adviced to try different hardware acceleration settings, but these did not make the trick.
I noticed from othe thread that you have also new GH5. I get later this week my GH5, will test these files later.

I forgot to tell that later I noticed that crashing during rendering happens also with some other filters, like adding Audio filter > NewBlue Hum remover and Pitch change.

[aljimenez]

Don't have a GH5 and plan to buy it much later (like in a year or two); my GH4 and GX85 are doing what I want right now.

My video stories are pretty much like yours. I just finished one of a granddaughter at a dance program. I captured many (more than ten) clips in 4K and 1080p60 using the GX85. I used a monopod which I held high up for the captures and each clip needed scissor cuts at the beginning and at the end. In addition I did lots of time adjustments to get slow motion over portions of the story. I had transitions: fade to black, crossfades and adding black frames sometimes; I also added titles. I split the audio during some of the clips that I slowed down to adjust the audio. In short, a pretty complex story done in X9 and without any issues. I rendered to 1080p30.

What I have not done is adding audio filters and I wonder if that is where the bug may be. I suggest some experiments with audio filters to see if you can create a short project that fails in a reproducible manner.

EDIT: My source video is 4K 30p .mp4 format, 1080p60 .mp4 format and rendering is to 1080p30 mp4. Please post similar details.

[Kelo]

Our Video Studio usage is not very different.
I don't usually use audio filters and have removed them alltogether.
My typical source files are 4KUHD mp4 25fps (living in PAL area) bitrate 105600 bps and output 4KUHD 25 mp4 bitrate 50000 bps.

BTW. I decided to publish current project without transitions between 4K clips and hoping to solve issues later:
https://youtu.be/Fqe2_AfeJqc

[aljimenez]

Video is so high quality! Bitrates should not be a problem. We have also done much remote camping, by the way. To debug the problems you encountered, I suggest you try creating a smaller project from some of your video clips (say three or four); use the transitions and filters to determine what is making X10 fail.

[acromegaman]

I think I am seeing the exact same thing on my side! I have VideoStudio X10.
It crashes on project playback and rendering everytime I have a transition (using crossfade, but crashes on others too) between video clips. Not between video and pictures though.
My videos are 1080 60p. And my camera is a Lumix G85.
For videos I use pan and zoom, enhanced lighting, and sharpen filters. with color correction.

My workaround is if I am going from video 1 to video 2, I freeze frame the first frame of video 2 for 1.1 seconds and have the crossfade be 1 second... There's a bit of a pause in the transition (the 0.1 sec), but better than nothing!

Was the issue identified?

I didn't have that in X8 (upgraded from X8 to X10 a few months ago...)

[aljimenez]

Is X10 crashing for you? This post was about X9 crashing. If X10 is crashing, it would help is you make a small project that crashes so someone here can reproduce and Corel could eventually use to correct the problem.

[simmosimmo]

Hi,

I'm getting the same issue with 4k video from a Panasonic Lumix TZ100 camera. I also have X9 Ultimate (v19.7.0.12 - 64 bit). I wondered if the orignal poster had found a solution?

Video properties are :
MPEG-4 Files
24 bits, 3840 x 2160, 25 fps
Frame-based
H.264 High Profile Video: 105600 Kbps
48000 Hz, 16 Bit, Stereo
MPEG AAC Audio: 128 Kbps

I've tried lots of combinations, but with not much luck.
As a basic test i drag a short clip to timeline, choose to adopt project setting...add the same clip and then add crossfade (or any really) transition between. I render using "project settings". VS crashes with the transition included.
Interestingly, if i render without the transition it works fine... I then add the new rendered clip to a new project, chop it in half and add a transition between. This time it renders with no issue.

Any help would be appreciated.

[aljimenez]

Hard to figure your problem since my Panasonic camera videos work fine with X9. If you could package a small project so we can try it, we might be able to help.

Try sending a PM to original poster since he has not posted here for awhile.

[lata]

Hi
Al, when you say you have no problems with Panasonic, is that a camcorder or point and shoot TZ range.
I am also having some issues with my footage from a Panasonic TZ 70 this records to MP4 high definition not 4K.
I have to say that X7 does not crash unlike X8, X9, and X10.
My video shows a green line at the bottom of the frame, simple editing or playing the clips crashes Video Studio.

For X9 Corel provided a HotFix for 4K.MP4, I cannot remember the circumstances but as far as I know that fix was incorporated within the next service pack. I have tried using the hot fix to no avail.

simmosimmo, as requested by Al , can you upload a few sample videos so we can test on our pc.
I am about to contact Corel regarding my crashes and will also point them to this post, but samples will be useful.

Attached is the hot fix for 4K issues provided by Corel, simply rename the original file and paste the new as a replacement
C:\Program Files\Corel\Corel VideoStudio X9

[aljimenez]

My Panasonic cameras are GH2, GH4, & GX85 and they all create very similar video files. The GX85 is the newest and it's 4K files are very similar to the older GH4 4K files. However I don't have any TZ model cameras & I am assuming it's 4K files are similar to mine. The reports of failure only when using transitions is the weird thing which I have not experienced. That's why I'd like to try a small sample. Perhaps it is the length of the transitions, or the transitions installation is broken?

[lata]

Hi Al

Yes a sample would be useful, I don’t wish to hijack this post but you can try my video from this link.
https://1drv.ms/f/s!ApBs8FwBwJ5jjFYvADgIFbtdGszz

I do remember you having some issues with black thumbnails, if my memory serves me, a while back now, Corel provided a fix.
There were lots of problems using MP4 when they first became popular, I recall Corel providing at least 5 hot fixes during X7 rule.
Unfortunately 4K is newish, with camera manufacturers tweaking the codecs leaves video editors playing catchup.
I am sure Corel want to fix any crash issues, for that they do need samples.