Thank you for the update, Daniel. Issues with asynchronous events can be a real pain to resolve. Perhaps the issue arises on my machine as it is relatively powerful (Xeon E-2186M based laptop, which is a 6 core processor). The more cores, the greater the chance of a race condition, for example.
I’ve stepped back to eLCC 6.11 and will stay there until there is a suggested route forwards. Emergency releases can be a bad idea - I got burned by emergency releases going wrong when I was last well enough to work, which was as a software engineer. It is better to take the time to find a properly considered way forwards and I am sure this will happen.
I note that the Windows installer for Spectralayers 7 Pro, which came out in the last few days, contains eLCC 6.11 - though that might have been the latest version when the installer was built a few weeks ago (according to the digital signature).
eLCC 6.12 is more important for Mac OS users, it seems - I know how many times you had to reply to Mac users who were really hurting because of issues with eLCC 6.11. eLCC 6.11 is stable on my Windows 10 system.
Like you, I look forward to the day when I can do away with eLicenser. I won’t be weeping tears over its passing, but yelling hooray!