So today came the inevitable. It's not possible to add more people to my tree. Today, I have 322 673 individuals in the tree and there it´s stop. Attempted to delete a person to try to find the error, but it is not possible to delete a person or change data for any person. -restarted the computer ... no change. Deleted program and reinstalled it ...... no no change
Have been unable to synk my tree for 10 months and the support says they have been aware of the problem with big trees but have no answer to if / when they plan to correct the error. Sad to not be able to continue with trees that have taken 20 years to build.
I have not had your issues, but now & then I clean up the dbase by exporting to a GEDCOM & re-importing it into a new tree.
It is a good way to 'clean' the data, although there is, in a tree as big as yours, lots of opportunity for data corruption.
Try it out, though -as long as you don't overwrite the original, it can't hurt.