Stuck registration in cockpit

[CityFlyer76]

Hello all.

I have a somewhat strange problem. I have tried to find the solution here but to no avail. Maybe is something that Im doing wrong and the solution is straight forward.

After installing a new livery for the v2 I noticed that when loading a new flight, with another livery the registration in the cockpit doesn't chenge. The one on the outside does change but the one in the cockpit stays the same.

Another strange behaviour (seems related) is that after updating the SELCAL in Simbrief and importing the plan via tablet the SELCAL has also showed up besides the registration in the cockpit.

Are the registration on the tablet and in the cockpit somehow connnected? Shouldn't all the regs change in line with the one that is inserted in the Sim/World map?

Thank you.

[joshualeung10]

On the inibuilds A320 and A321 aircraft, the registration on the exterior of the plane is based on the livery, i.e. whatever the creator of the livery set it to be. 
The registration inside the cockpit (label and SELCAL code) is connected to the tablet under the settings "Tail Number and SELCAL," but I realised it's not connected to the in-game method of changing the registration. It is quite weird as it only happens on these two aircraft but not the ini A330 I believe. 

Hope this helps you.