Save as psd question

[6860_Pacific]

I created a vector background blank canvas and added 3 layers with text on each layer. I thought saving as psd file would allow the layers to be adjusted in Photoshop. They aren't editable. The message when saving is “because of the limitations of the unsupported file format (and possibly the save options you selected) any unsupported vector data will be lost.” What is the process of saving in psd format so when file is opened in photoshop the layers are still editable? Thanks in advance. I am using Paintshop Pro Ultimate 2021.

[Cassel]

Photoshop and PaintShop Pro do not share the same vector format. PSP cannot keep the vectors from PS and PS cannot keep the vectors from PSP.
Saving in .psd format will keep most of the layers, but since PSP and PS don't "speak the same language" some functions will be lost.