Description:
I open a file I created in LO and work on it. When I open another LO file after about 10 minutes the file won't open but will show the little flash screen which flashes on and off. This keeps up until I close the first file. Then when the 2nd file opens I have to go through the File Recovery process for the file I just closed. However, if I open the 2nd file within a few minutes of first opening the original file this problem doesn't occur. It matters not what 2 files are involved. I've experimented with this a few times and it seems the point where the trouble starts is AFTER the file I'm working on has been saved or had an autosave event occur a few times. Opening more files before that has no problem. I only use Writer and Calc. I tried 'Continue in Safe Mode' and when it happened using that I got - "Error loading BASIC of document file:///home/ernest/.config/libreoffice/4/user/basic/Standard/script.xlb/: General Error. General input/output error." - I checked, and the file is the same code wording as in a brand new installation of LO7. This has only appeared this year, but not sure if it started when I upgraded to LO 6.5 or LO 7, but it has been an issue with each version of LO 7 I've used and I suspect it is only LO 7 related. I use Writer the most and marked as such, but have had the same issue with Calc.

Steps to Reproduce:
1. Opened ODT file, made several changes and saved several times over 10 minutes or more.
2. Opened another ODT file or a ODS file check information in it.
3. 2nd file didn't open but LO flash screen flashes at me until I close the first file.

Actual Results:
Happens about 85% of the time that I have a flashing screen until i clsoe the first file.

Expected Results:
The second file should open as normal


Reproducible: Sometimes


User Profile Reset: Yes



Additional Info:
Using LO 7.0.2.2 in latest updated version of Zorin Linux with Nvidia GeForce GTX 1660 Ti graphics card using Nvidia driver 450.80.02 displaying on a 4 monitors, all of which are AOC 4K monitors. System is AMD Ryzen 5 3600 6-core CPU with 64 GB RAM. Help info below:

Version: 7.0.2.2
Build ID: 8349ace3c3162073abd90d81fd06dcfb6b36b994
CPU threads: 12; OS: Linux 5.4; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded