From the crash dumps you sent today, this looks like a crash when right-clicking something?
Can you give us more information about what is being right-clicked?
Does it only happen on right-click, or also on other mouse actions?
These are the third party DLLs loaded into the process:
C:\Program Files (x86)\DisplayFusion\Hooks\AppHook64_2DB5A5A9-C5A4-4A7C-9299-A7A90103C40F.dll
C:\Program Files (x86)\Norton Security\Engine\22.214.171.124\BuShell.dll
C:\Program Files (x86)\Norton Security\Engine\126.96.36.199\ccIPC.dll
C:\Program Files (x86)\Norton Security\Engine\188.8.131.52\ccLib.dll
C:\Program Files (x86)\Norton Security\Engine\184.108.40.206\ccSet.dll
C:\Program Files (x86)\Norton Security\Engine\220.127.116.11\ccVrTrst.dll
C:\Program Files (x86)\Norton Security\Engine\18.104.22.168\EFACli64.dll
C:\Program Files (x86)\Norton Security\Engine\22.214.171.124\msvcp140.dll
C:\Program Files (x86)\Norton Security\Engine\126.96.36.199\NavShExt.dll
C:\Program Files (x86)\Norton Security\Engine\188.8.131.52\VCRUNTIME140.dll
C:\Program Files (x86)\Notepad++\NppShell_06.dll
C:\Program Files (x86)\Send Anywhere\context_handler\x64\snda_context_handler.dll
C:\Program Files (x86)\Zoom Player\zpshlext64.dll
C:\Program Files\Attribute Changer\acshell.dll
C:\Program Files\FileZilla FTP Client\fzshellext_64.dll
C:\Program Files\Mythicsoft\FileLocator Pro\ShellExt_2929.dll
C:\Program Files\Start Menu X\StartMenuXHook.dll
C:\Program Files (x86)\Common Files\Microsoft Shared\MSEnv\VSFileHandler_64.dll
If it happens with more than just right-clicks, the EvoMouseHook component might be worth investigating. If it's only when right-clicking then it could be any of them, and narrowing it down would be the best first step.
Working out the cause is important, else we have nothing to go on and no way to try and reproduce the same problem ourselves.
Extensions may work in Explorer but crash Opus (or vice versa) as the two things are different programs and some people only test against Explorer and rely on quirks of what it does or doesn't do. We can sometimes work around those quirks, or report them to the developers involved to see if they can fix them, or if needed block components from being loaded into Opus. But we need to know which component is causing the problem and how to reproduce it first. Only you can work that out, since the problem is only happening on your machine.
It's also possible that this is a bug in Opus, but this is rare when it comes to right-click crashes, and we'd usually have more reports if the bug was in Opus itself.
The dumps suggest that something has closed the lister window while the context menu was still open, which shouldn't usually be possible. We'll add some checks to our code to detect that and handle it better. That may avoid the crash, but we can't guarantee it without being able to reproduce it (e.g. by installing the same component that's causing the situation to occur).