Hi @Lotak,
FYI since your last post in the release note forum (ps4-patch-26-06-2019 note) 10 days ago, I had to restart from scratch 2 times.
It seems ok now in reducing (limiting) size and complexity (but stays is still Hughe for a Single Player) of my base, and I agree is frustrating specially when you spent days on it, but this is the only solution some of us found before Funcom will release a patch against this problem(s).
Don’t forget to send the PS4 Crash Report that (may automatically) generates. This CR is sent by PSN to Funcom.