Interesting that it hits every aircraft, not just the iniBuilds ones. That points more toward the sim's ground services state than any single plane's EFB. On the settings side, double-check that ground power isn't tied to the same state as the jetway or fuel truck, since those toggles can sometimes override each other. If the EFB switch shows on but the GPU doesn't connect, it may be worth starting a fresh flight rather than reloading the same one, as saved panel states can carry over stale values. Curious whether a default aircraft shows the same behavior for you.