Camunda Engine CDI - Microprofile 4

I’m trying to upgrade Camunda Engine to version >= 7.12.0 in a JavaEE 8 environment using Microprofile 4. Seems like there is some kind of issue when invoking DeltaSpike from a Camunda delegate context java class. This behavior is present only after Microprofile upgrade, in Microprofile 3 everything works as expected. Same goes for Microprofile 4 and Camunda 7.11.0. Since Microprofile and DeltaSpike both implement standard JSR specifications, could this be an issue of the CDI Bean lookup of the camunda-engine-cdi implementation?
Kind regards,