Class Modules Only (Did it mess up my other modules)?

[mikeannetta]

I have a few large and complicated workbooks with many Macro's, Pivot Tables, Pivot Slices with report connections. I have Excel 2019 64Bit standalone app on my computer. This week after I was having so many issues I decided to Uninstall a 2016 version of "Office" that was on my computer, not sure why, and also reinstall the 2019 version again. My problems continued.
Basic Flow of Problem
1) Opened my Financial Trackers that I created many years ago, and none of the Macros worked.
2) When I opened up VBA, I noticed that I had the "Class 1" Class Module
3) If I try to open any of the Modules I created all it shows me is a Partially Grayed Code Window??? See image!

If I tried to open the "Class 1" Class Module, Excel would just reboot and reopen the file.​

4) If I removed the "Class 1" Class Module, closed the file and re opened it, it all seemed to work ok?
5) I do not every remembering adding a Class Module?
6) The only other thing I did was the Logitech MX Master 3 Mouse, but I was having the issues even before installation?

Perplexed in Ohio - any help would be appreciated

 

[JLGWhiz]

Normally, one code module would not affect another code module except when a procedure in one module is called from another module. So if the "Class 1" module had code that was being called from a procedure in another module to disrupt your standard settings, I would think that you would get an error message after removing the "Class 1" module. This type of problem is difficult to diagnose remotely. It has all the indications of user malfunction rather than equipment malfuntion.