Inibuilds EGCC IFR Clearance

I have an odd problem that I don’t Understand. I can create a flight in Simbrief from Inibuilds EGCC to EIDW for example. I load up beyond ATC and whichever Aircraft I try, I just cannot get the option to request IFR clearance. I can select clearance from the options in BeyondATC and request IFR clearance pops up and disappears. This also happens in the sim ATC, no option to tune in to get clearance. I can pop across country to Liverpool or down to Luton and everything works fine. It’s just Manchester. Any help/suggestions or advice would be greatly appreciated

Moved to User Support Hub that is more appropriate for community support.

That sounds more like the airport data or frequency side than the aircraft, if it only follows EGCC. I would try it once with the iniBuilds scenery disabled, just to see whether the stock airport gives you Clearance Delivery or Ground normally. Also make sure the flight is loaded as an IFR plan in the sim itself, not only in SimBrief/BATC, and start from a proper parking stand rather than an active runway. If both default ATC and BATC lose the clearance option at the same airport, I would be looking at the airport package or its frequencies first.