Can't switch buffers by filtering for buffer names including the letter "B"
This is very strange, so bear with me.
I'm using Eclipse IDE 2023-12 (4.30.0) on MacOS with Emacs key bindings. Switching windows/tabs/files is initiated with Ctrl-X,b and then you can immediately type into a filter to narrow things down e.g. *.java or MyClass, etc.
For some reason, the letter b does nothing in this filter.
If I have an open buffer with the name Keyboard.java and I type Ctrl-X,b,Keyboard then the filter will show the word Keyoard (note the missing b) which will match nothing. No amount of backspacing, etc. will get the B key to type into that filter.
But the b key isn't being completely ignored. If I press b in that dialog, it seems to scroll-through the buffer names, with each keypress selecting a different buffer from the list.
If I choose Window > Navigation > Switch to Editor... (which is labeled with the shortcut ^C ^B (note that's Ctrl-X,Ctrl-B instead of a bare B), I get a different dialog that does roughly the same thing. There is no "filter" box to type into, but typing does indeed search around within the list of open buffers. And the B key works, at least to the extent that any key works there... the rules are quite murky in there.
Is there a reason I can't filter my buffers for the letter b? I haven't encountered any other key on the keyboard that doesn't work in this search filter box.