2021.1 crash after select a file in welcome window

After installation of skp 2021.1, click to icon for start. Welcome window open itself. I select a file, or a template, and crash, with bug splat window.
I’ve send error report, and contact technical support, but no aswer.
Win 10 last update, RTX 2070 super with updated driver, and i9 9900.
If I uninstall 2021.1 and reinstall 2021.0, this work fine like before.
Some solutions?..
Thanks

What monitors do you have, and if you run on one monitor, does 2021.1 work ok?

Are you an admin on the computer?

Hi.
I work with 2 monitors. One 32’’ and one 28’’. SKP (work window and trays) run only in main monitor 32’’.
It is 4k, so, it is setting to fonts 150% (or all toolbars for all software may be too small).
I’m admin.