In my demo environment I have IG3.0 running on server A och IDM 4.6.2
with OSP 6.1.6 is running on server B, on port 443 is it matters.

When I login to IGA as a Global Administrator, on the Overview page
where there are supposed to be statistics charts there are only loading

I have waited for over 5 minutes without anything loading.

Any troubleshooting tips?

Next thing is if I try to change the "Manual fulfillment (system
default)" fulfiller.
I get an unexpected error message when I click save.
The fulfiller seems to change if I reload the page.

In the catalina.out I see this when I click save:
WARN | SQL Error: 0, SQLState: 42883
ERROR | ERROR: operator does not exist: character varying = bytea
Hint: No operator matches the given name and argument type(s). You
might need to add explicit type casts.
Position: 205