For the PC…Store version…Not Dev mode.
After update 5, sim reported there was an update in the store. There was no update there.
Tried several suggested fixes from the forums. What finally worked was to uninstall sim after renaming the (well-loaded) community folder.
After the re-install, I deleted the newly created Community folder and renamed my backup to “Community”. I started the sim and was able to load to the main menu and proceed, successfully, to perform all in-sim updates.
Everything was fine until the release of the next patch…where I had to repeat all of the above. The re-install worked both times.
The re-install was not so bad, considering my Gb internet connectivity…lucky for me…smiles. And my PC is an i-9 with 64 Gb ram running a 1 Tb NVME M.2 running Sli 2070’s.
Anyway…working again now with everything…so far.