Engine stall after deceleration MED9.1 (Atmo to Turbo project)

Hello guys,
maybe anyone experienced a problem with VERY huge ball bearing turbochargers
when engine is hot and release the throttle so engne decelerates and it simply dies.
That is only condition that we face any problems all other works perfectly.

The condition happens in OVERRUN phase when RPM are dropping down (deceleration) and in one moment aiflow gets up instead of down,
injectors close down (cut-off) and again turn of when IDLE function kicks in but too late and engine turns off.
Haven't tested hacking cut-off input parameters yet.

When for test MAF disconnecded or engine temperature cold -> engine does not stall in any case.
Attached log when engine stalls also rich in deceleration...

It is clear maf rise while deceleration problem and would like to ignore it or to hack coolant temperature dependant maps.

Hacking idle speed function, timers, codewords and other things is not proper approach and does not make any results.
It is clear torque intervention on deceleration with fuel cut off command due to DK/AIRFLOW/FILLING/LOAD not in the alawable
deviation.

When engine is cold does not stall.  So question is if deceleration
fuel cut off temperature and gear dependent maps will do the trick or there could be some interesting different aproach.
Maybe someone has some experiance or can hit a bit. Thanks for any kind of hints in advance.