For me modular engines also don't work.

Luckly i was testing a new ECU at the moment, so i found out, that Composite Channel 1 is off by Factor of 10.

If i multiply the channel value with 10 the AFR of the cylinder and the ECU are match again and the engines are working again.

--> after 60 min of testing i think that solve everything, so the devs can easly correct it in a hotfix ;)