MUC Offline Messages OMEMO

Hello community,
is there a way to get to run MUC offline messages once they are encrypted through OMEMO?
Once user gets offline for some reason, user leaves the MUC room and will not get any encrypted message that have been sent to that specific room. Even if the app on a modern smartphones is still running the smartphones go offline after a short while and user will not get any messages through the MUC.

Thank you in advance
Andre