In the Search for Sabina quest 3/4 .... find the hidden outpost(visit) I have visited several times over last few days but it won't register, and I presume getting the seal won't happen either.
I've just put a report in to s8 support so guess it will be fixed next week ish.
I'm not really in a hurry with this as I have expansion permits to get for the next goal but thought I'd post in case it's not just me. (My other account was ok with this goal).