Is this already implemented in openmodelica?

Hello, I'm quite new to openmodelica and i have been passed a model that was devleoped in dymola and i'm trying to run it in open modelica.
THe model uses the StateGraph2 lybrary and i'm currently using the nightly built for open modelica since that was giving less errors that current version.

The model has a controller for a tank which uses a lot of steps and transitions and i'm getting the following error which we don't get in dymola:

Class Connections.uniqueRoot not found in scope Modelica_stateGraph2.step (looking for a function or record).

Any idea on how i could debug this error?

Best Regards