mmm are DummyW and Warte_Drive in bank0?

if so what about if your remove them from there?

i guess you could be out of 'space' in BANK0

What happen if you group all the BANK0 variable in the same block... i mean
Var1 var Byte BANK0
Var2 var Byte BANK0
Var3 var Byte BANK0

and later you list all other variable bellow BANK0 list. pure guessing so far.