Updated with the latest patch. It's probably something that happens with other II teams, but i have only checked it with FC Bayern Munchen.

Here's Gerd Muller FCB II coach (with a manager/coach clause!!)

But he does not appear in the staff information:

And (maybe) because of it he doesn't coach at any level in training:

Sorry if this is supposed to be as it is, in that case disregard the thread. I haven't checked the editor to see if i had any more coaches lost.

don't mind my english.