I also have an AIR desktop App and only knew issues today when I read your post and this would happen soon or latter.
On my case it's embedded runtime, so I would say that this is an isolated issue with AIR.
Since Adobe is not maintaining AIR anymore and Harman is focus on Android for at least, let's say, one year, your options are very clear:
- Move to embedded runtime (your best opition on my opinion);
- Harman release the fix and you will have to start paying;
- Change technology (I doubtful that you choose this one, for obvious reasons).