I'm back....
So i've tried multiple airports with multiple aircraft, and i'm still getting the issue of the pilot, asking for CTR clearance through airspace whilst taxiing. This has in fact been straight from start up (Eg opening up the program, choosing an airport and paring position and then choosing "Fly"). This is exactly what i've been doing in each instance:
Load in to the sim. Start up battery/Engines/radios (If options permit)
Then tune in to ground frequency for airport
Do comms check. Get response
ask Clearance for start up. Get response
Ask departure information. Get response
Ask for Taxi instructions. Get response.
Start taxiing. within 5 seconds of taxiing, I get a message stating "'Pilot name', requesting transition through CTR airspace" followed by message from ground "Contact approach on 'Frequency'". I have switched over to the frequency, which then gives me approval and stops the message. This might be totally intentional, it just seems strange that i'm asking for clearance through local airspace-whilst taxiing.
I have tried this in Europe and the states. It seems to be the same
Also, i'm not sure if this is intentional but when asking for comms check, it responds with "'Pilot name' reading you 5" I'm not sure why the 5 is there, whether it is intentional or not, or just another glitch.
It may be worth noting that this is off a Macbook and i'm using version 2019.1
Hopefully this was helpful. I'll keep helping any way I can if possible