Muse not running after Creative Cloud Desktop app update

After the latest update to version 6.1.0.587 my copy of Adobe Muse will no longer open.

It partially loads, and then just closes.

In the Windows 10 logs I'm seeing -

Application: Muse.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code c0000005, exception address 0000000000DEE917

Followed by -

Faulting application name: Muse.exe, version: 2018.1.1.6, time stamp: 0x5d3ed771
Faulting module name: Muse.exe, version: 2018.1.1.6, time stamp: 0x5d3ed771
Exception code: 0xc0000005
Fault offset: 0x000000000060e917
Faulting process ID: 0x3150
Faulting application start time: 0x01da33a19cf3e497
Faulting application path: C:\Program Files\Adobe\Adobe Muse CC 2018\Muse.exe
Faulting module path: C:\Program Files\Adobe\Adobe Muse CC 2018\Muse.exe
Report ID: 8266414e-2cfd-4801-b0e4-a5257678bd62
Faulting package full name:
Faulting package-relative application ID:

Anyone any idea why this is happening?

I have uninstalled and reinstalled Muse and that makes no difference.

This is a big problem as I need to update one of my Muse websites.

And please, DON'T just tell me that Muse is now unsupported and obsolete and I should be using something else, I'm well aware of that!

I have carried on using Muse until I can find something better, which I haven't yet, and it has always worked fine up until now.

I haven't knowingly made any changes which would prevent it from working, so why has it suddenly apparently failed?

Thanks, Dave.