After some testing I have found a pattern to this problem but I'm no closer to understanding why it's happening.
It seems that on every 8th turret index I end up with the "cannot use G53 incremental Block = G0G53Z0.0000" So, this could be two tool changes for instance tool from tool 7 to 6 and then 6 to 7 so eight indexes in total I'll get the error message. Or 3 to 4 then 4 to 5 then 5 to 6 then 6 to 7 then 7 to 8 then 8 to 1 then 1 to 2 then on the 2 to 3 I'll get the error message. what ever happens on the 8th tool position I'll get the message and the XZ won't move to safe position but the change still happens..
Help!