VSU 2020 symbol identification?

[VSU2020user]

Hi there, I asked Corel in chat about this but they didn't know what it was so I'm hoping an experienced user will know.
Please see the attached file- I'm wondering what the green right-angle symbol means? I'm asking because I believe it has something to do with the error I get when trying to split a video file. All of my other video clips split with no issues except one, and that one in particular has the little green symbol in the pic attached.

What does that symbol mean exactly? I skimmed through the pdf manual and could not find the symbol. Anyone know what it means? Thanks.

[gewb]

That clip has been resized.

[VSU2020user]

Thank you very much gewb, although I was coming here to post that I has already figured it out lol. Regardless, thanks for replying. 2 Corel reps I had chatted with had no idea and said they would email me back. How did they get their jobs?

[gewb]

Thanks for returning to the thread to let me know you found the solution.