I am re-posting a a question that I also left on the PMDG Forum:
I took a wrong turn in trying to update my PMDG Operations Center (per guidance of PMDG), thinking that I needed to delete my aircraft files to fix the Center (stupid, I know). When, after some unrelated challenges, I was able to download and re-install the mods from my PMDG account, the software performed “repairs” on both mods and seemed to have installed them correctly. However, when I spawned into the simulator (with each of the mods), the aircraft came up cold, dark and effectively dead, as I couldn’t get any of controls, including the battery switch (which appeared to already be on) to respond. Hence, effectively the addons are inoperable. Has anyone else encountered this problem? And can anyone suggest a remedy?