Updating LibreOffice 6.4.7 to version 25.2.7, font problem?

During the upgrade from version 6.4.7 to 25.2.7 via GPO, viewing files became impossible (empty pages, broken columns, etc.otd documents). Deleting the user folder in %appdata% did not help. OS Windows 10. There is also a problem on Windows 7 OS with version 25.2.7. So far, there is only one solution that helps me - completely removing the old package 6.4.7 and installing 25.2.7, then everything is fine. During a small experiment, I changed the font from Liberation serif to arial and opened it in a new version.otd document - hooray, the text appeared - is there a problem with the font?

There is a difference in graphics renderer, from OpenGL to Skia. It is unlikely that your graphics card has full hardware support for Skia.
Click Tools - Options - LibreOffice - View and tick the box Force Skia software rendering. OK and allow LibreOffice to restart. This won’t address the font issue but it should help with other aspects.

I have not seen a problem with Liberation fonts but maybe the font is corrupted on your computer

I’m testing on 4 virtual machines and 2 hosts running Windows 7 and 10. All of them don’t have video cards.
Thanks for the advice, I’ll start testing right away!