You say the problem with unsupported formatting is not a bug??? After quite some years of experience in software development, I have never encountered a client that would agree with your point of you. And being responsible for delivery, I wouldn't either. If you build a software allowing formatting of text, this has to work correctly. And if your software allows editing across devices, this has to work too.
Why does the headline of this thread stat [fixed]? Seems to be anything but! I am currently using EN in a context where I have to make notes in different contexts and on different machines and it didn't take me long to run into this proplem. I will surely not renew my contract (which runs for another 10 months), if the formatting problem doesn't get fixed.