Error code 23 -Incorrect object type & map doesn't open any more.
My hunch is that the last imported polygon looked like point data instead of a boundary. I don't have access to the GIS origin so am unable to check corruption there.
So, ideally it would be nice to delete that last polygon, afterall, I can see it in the handy new, map navigation tool "Unlinked polygon [ID: 212]". But no, I'm going to have to do a map reset, aren't I?
Now, I have all the backup files which are to be used for standalone setups & can use a rollbacked set of gsf & rucksack with linked boundaries which should only take half a day, but does anyone know of a way to remove a polygon from the Object Sheets? Oh, and Update Last Key Addin doesn't work either in this version of R6.
Fortunately my day was going well & it's not too urgent, but I'll wait for a day for anyone else to comment before carrying out that familiar, but horribly time consuming process...