LRC crashes when exporting, then wont open catalogue

[#1]

LRC: Two issues, Exporting image crash, and unable to restart after

 1, When exporting images LRC hangs, a message comes up, LRC has encountered a problem, and needs to close. Option to send a report, which I do, the application then closes. This happened each time I attempt to export.

2, On attempting to reopen an error message comes up, unable to open catalogue No xxx, as it is being used by another application, please choose another catalogue. If you attempt to open another catalogue, LRC says this needs updated to the new version, and wants to overwrite the catalogue the catalogue that it earlier said you could not open, (my current one). I cancelled this action.

The only way I can restart LRC is to reboot the computer, and it then opens the right catalogue.  

Before rebooting the second time, I checked to ensure no other applications were running. I am assuming that the catalogue is hanging in memory as still open when LCR crashes.

My only option is, not to export at all, which is somewhat of a pain. This has only occurred since I upgraded to the latest version, so something is not right.

The other frustrating issue is: not being able to notify Adobe of a problem, after all we pay a monthly fee, surely they want to know when it goes wrong!

I checked to see if it was a hardware issue, resources running, processor, 4%, Ram at 16%, and other applications open and run with no issues.   

Anyone else has this issue, or knows how to overcome the problem?   

[#2]

LRC: Two issues, Exporting image crash, and unable to restart after

 1, When exporting images LRC hangs, a message comes up, LRC has encountered a problem, and needs to close. Option to send a report, which I do, the application then closes. This happened each time I attempt to export.

2, On attempting to reopen an error message comes up, unable to open catalogue No xxx, as it is being used by another application, please choose another catalogue. If you attempt to open another catalogue, LRC says this needs updated to the new version, and wants to overwrite the catalogue the catalogue that it earlier said you could not open, (my current one). I cancelled this action.

The only way I can restart LRC is to reboot the computer, and it then opens the right catalogue.  

Before rebooting the second time, I checked to ensure no other applications were running. I am assuming that the catalogue is hanging in memory as still open when LCR crashes.

My only option is, not to export at all, which is somewhat of a pain. This has only occurred since I upgraded to the latest version, so something is not right.

The other frustrating issue is: not being able to notify Adobe of a problem, after all we pay a monthly fee, surely they want to know when it goes wrong!

I checked to see if it was a hardware issue, resources running, processor, 4%, Ram at 16%, and other applications open and run with no issues.   

Anyone else has this issue, or knows how to overcome the problem?   

[#3]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.

[#4]

2, On attempting to reopen an error message comes up, unable to open catalogue No xxx, as it is being used by another application, please choose another catalogue

Previous crash? LrC did not close properly, lock file did not get deleted,

see: https://helpx.adobe.com/lightroom-classic/kb/lightroom-error-catalog-cannot-be-opened-lrcat-lock.htm...

[#5]

If you attempt to open another catalogue, LRC says this needs updated to the new version,

So, you may have been trying to open a catalog from LrC v9.4, i.e. not v10. V9 to v10 is an upgrade requiring cata;og upgrades as the SQL database code has changed so much. 

see: https://www.lightroomqueen.com/lightroom-upgrade-catalog/

[#6]

In LrC, in preferences, under performance, is use graphics processor turned on, and is it set to automatic?

Try turning that off.

[#7]

Thanks for the reply, the info you requested is below, 

I did try the graphic card settings, Auto made no difference, turning it off caused loading issues, took 10 minutes to load.

Lightroom opens then stops responding, it may be something to do with the sync, I noticed that it has an "X" sign on the cloud symbole, and the LR remain unresponsive until the "X" cleared. This may of course be just another symptom, rather than a cause. I do not use the cloud, my location and speed is not good enough. This slow opening has only just started today, which is a new concern

I can get around exporting to email by simply not do it, and export to file, or save as, "new size" "new name". But this developing issue with LR opening then going ""not responding" is concerning, although it does eventually clear itself, just very frustrating

System Infor as requested :

Lightroom Classic version: 10.1 [ 202012012023-e92d50bb ]

License: Creative Cloud

Language setting: en

Operating system: Windows 10 - Home Premium Edition

Version: 10.0.19041

Application architecture: x64

System architecture: x64

Logical processor count: 8

Processor speed: 3.4 GHz

SqLite Version: 3.30.1

Built-in memory: 16328.8 MB

Real memory available to Lightroom: 16328.8 MB

Real memory used by Lightroom: 3051.6 MB (18.6%)

Virtual memory used by Lightroom: 5226.9 MB

GDI objects count: 1029

USER objects count: 2404

Process handles count: 2331

Memory cache size: 661.6MB

Internal Camera Raw version: 13.1 [ 658 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 306MB / 8164MB (3%)

Camera Raw real memory: 306MB / 16328MB (1%)

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Displays: 1) 1920x1200

Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info:

DirectX: NVIDIA Quadro K620 (27.21.14.5239)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\Tony\Pictures\Lightroom\Lightroom Catalog-2-2-v10.lrcat

Settings Folder: C:\Users\Tony\AppData\Roaming\Adobe\Lightroom

Installed Plugins:

1) AdobeStock

2) Facebook

3) Flickr

4) LogiOptions

5) Nikon Tether Plugin