Since the problem you indicate is beyond the first-failure (ever heard of
FFDC -- first-failure data capture), you really cannot expect the subsequent
results to be predictable.  The current behavior seems reasonable, to me;
you cannot do a restore -- (and) hopefully, you also cannot do any other
functions, either.

You could request the design change (to prevent further client operations --
yet still keep the window open so you can see - and respond to - the error
message).  I would consider it a bug if any functions affected by INCLEXCL
were allowed to proceed;  the fact that restore "shows no files" is one way
of doing that for the restore function -- what about
backup/archive/retrieve?!?