No worries man. Unfortunately, I don’t have any more power to get James’ or another dev’s attention than you do. As far as I’m aware nearly all active work on KI has ceased at this point however, so I honestly wouldn’t expect this to be resolved any time soon. Even that cascading network issue that crashed the online a while back seemed to mostly get resolved due to James being a one-man troubleshooting service…MS hasn’t seen fit to put significant resources into the game for a while, and I have to think patching out achievements on Steam isn’t going to make the priority list in the near future.
I hope that your issue can get resolved, but in the meantime you’ve probably done all you can. When James checks back on the forum maybe he’ll see your request and be able to start a fix, but maybe not. We’ve no idea how the Steam port was done or budgeted internally, so not even really sure James has oversight or authority to do the fix you’re asking for.