Its not a quick bug fix, as they said during the live stream. The EFB bug spans across several bugs they are working on. The EFB is also non functional as a popout in pancake mode as well. They stated during the live stream that the EFB bug, the Toolbar bug and a couple other bugs are all related to the same source. They were actively working on a fix to it. I am assuming that it is a more difficult bug than just being able to do a “quick fix” They seem to be aware of it and are working on it.
Patience is needed even if the bug is the most freaking annoying thing I personally face at the moment in the Sim.