GPS Failing In Add-on Aircraft

I am having an usual problem and I haven't found a forum topic covering this. The problem lies within the GPS of the addon feelthere Phenom 100 and Eaglesoft S/II . After ~1min after powering the panel on, both GPS die/shutoff. In the Phenom the rest of the G1000 MFD still works (ie engine instrumentation) but the GPS display is dark and inoperative. On the S/II I have resorted to replacing their GPS with the FS default one (on both the 2D and VC panels) and it still shuts off. All default FS aircraft work and so does my JustFlight Duchess.Adding the RealityXP GPS on the S/II doesn't fix it either, it shuts off with the other GPS.It isn't a RealityXP problem, as I don't have it installed on the Phenom.I own all aircraft, they are not pirated copies.Thanks!