Importing PCV corrections into FTECU, 16 R1

After running the bike with FTECU and PCV with AT succesfully for 4 years I thought I would tidy it all up and import the PCV into the FTECU. I run exup valve and 02 eliminators...........I cannot set closed loop to disable and run the exup valve (it throws exup valve fault)

It all looks well when I import the PCV adjustments, I even checked with a calculator some of the various percentages, all looked good even the blending in about 4% up throttle and 3% down throttle on the fuel map.

Riding the bike after the import with also AF display showed the fuelling still away from where I set it, so imported another set of corrections and then it started going pear shaped, first it would want to add around 10-15% more fuel, so I let it add that (PCV), it then went megga rich (10-1) and wanted 10-15% fuel taking out, it then ran megga lean (16-1) and both of these could be really felt with the bike holding back, but it was sporadic, ok for 10 minutes and then either megga rich or megga lean

I reloaded the std FTECU fuel map and the PCV adjustments and all is well again

So what happening? Is it jumping form TPS-RPM to MAP-RPM or is there some kind of check sum going on almost as if the fuel map alteration is fighting closed loop (but they have 02 eliminators in place)