Hi @emre
When passing a Decimal like 0.5 over to Update Entity Action and using +[field value] to increment the Field Value it seems to fail.
I have tried changing the Entity Custom Field from Simple to Number and the field can hold a decimal but the calculation just fails (possibly in the parser).
SAMPLE ACTION:
FYI - but will work around it using pre-calculation {CALL:x} or change the logic.
Thanks Paul.