Works now. Excellent. The default 4 Way, diagonals only isn't a very good map. I used the cleaner one found in the thread you suggested. Q*Bert felt better and the directions were confirmed when I put my initials into the high scores.0
I don't think a specific q*Bert file is required. Just the better map for 4 Way diagonal. Having the stick register exactly as it would in MAME probably helps. The default Ultramap 4 Way diagonal file took should be replaced with:
MapFileFormatVersion=1.0
MapSize=9
MapRow1=W,W,W,W,*,N,N,N,N
MapRow2=W,W,W,W,*,N,N,N,N
MapRow3=W,W,W,W,*,N,N,N,N
MapRow4=W,W,W,C,C,C,N,N,N
MapRow5=*,*,*,C,C,C,*,*,*
MapRow6=S,S,S,C,C,C,E,E,E
MapRow7=S,S,S,S,*,E,E,E,E
MapRow8=S,S,S,S,*,E,E,E,E
MapRow9=S,S,S,S,*,E,E,E,E
... immediately. It would save a lot of grief for new u360 users.