Hi Kl3m3n,
Sorry for the delayed response.
I’ve noticed that when my car head-up Android system goes offline or when the RTC time resets, the GUI-O system reverts to the demo version. Once I reboot and set the RTC clock correctly, it works fine again.
It would be very helpful if you could implement offline (in-app) caching of the purchase state, as this might prevent the issue in such cases.
I hope this information helps you in identifying and resolving the problem.
Regards,
Soma