ABSOLUTE TONS OF THANK YOU's for publishing this fix!!!
I've used and paid for years for Komodo-IDE since it was new. I finally got a new PC and reinstalled Fedora Linux to fresh install and thought that I would get all new versions of most everything. Yes, was just upgrading my old PC for many years so Komodo-IDE 11 never broke - just kept chugging along. I knew about Komodo-Edit and used it occasionally.
But then I found V12.x Komodo-IDE and how you have to login to your platform.activestate.com account to authenticate. Fine, I have such an account (although quite stale).
I ran into this same problem and found your fix. Your explanation is quite detailed for Windows but with a close study, the fix is rather easy. I did this on Fedora 42 Linux.
When I re-started Komodo-IDE, the same problem persisted. I wanted to get this info to this site to add my notes to the fix. Your notes say to UN-Install the software - maybe on Windows its setting etc is in the registry - hence uninstall. No need to uninstall anything on Linux. On Linux, Komodo (edit and IDE) add hidden folders to your home folder - these need to be removed after fixing the app. Otherwise the original problem seems to persist. After fixing the app per your instructions (Translating to Linux ways) REMOVE the following two folders.
rm -rf $HOME/.activestate/'komodo ide' rm -rf $HOME/komodoide
Then you can re-run the app and it will act like a brand new install. But it will not prompt to authenticate.
I was never happy with the abandoning of the whole Tcl-PRO dev kit stuff and now they abandoned Komodo - Sad indeed. But now I can at least still use the current version for better or worse.
Many Thanks for your FIX!!!!! Twas a blessing to find it. Created new account here just to tell you all this.