Strange Windows error that only affect my Excel files

[Chartman of the Bored]

I'm on Windows 10. When I'm working in Excel occasionally my screen starts flashing for about 1 minute (no pattern to when or why it happens ... it just randomly starts). During this time I can't click into any Excel cells or do anything in Excel. The other applications on my computer work fine during this time. When the flashing stops I find that the file I was working on gets migrated on the Windows toolbar (icons at the bottom of the screen) to the end (i.e., the far right of all the Excel files). Normally when I have multiple Excel files open I can't rearrange their order on he toolbar. But somehow this bug moves the file to the end of the list.

It's really annoying since it happens without warning -- sometimes several times per hour while I'm trying to work and I just have to sit there since it's not long enough to get something else done but long enough to be really annoying.

Anyone ever heard of this bug?

 

[baitmaster]

I've not had this bug but I've had something similar, where Excel & VBA would regularly freeze / stutter, and was caused by out of date drivers on graphics card. Might be worth checking your system is up to date

 

[jimrward]

Do you have excel auto backup enabled with a short time span

 

[Chartman of the Bored]

Do you have excel auto backup enabled with a short time span

I just checked. It was set to auto-save every 10 minutes. I changed it to 20 minutes. I guess I'll see if it happens half the time. If so, that's probably the culprit. Thanks.