I use Firefox, which is current. On a Dell laptop, Windoze 10 still. I occasionally get the message. I have this hiking forum and several others on a Bookmark. Firefox has their “Open all tabs” feature on bookmarks and I use that, so five or six forums all open at once. However I get to this forum after already checking several others first (Today, this is the last one I’m checking). I click on COMMUNITY and then select the RECENT FORUM TOPICs. Which 95 percent of the time (it seems) presents me with the list of most recent topic, in descending order. Which is what I also do on all the other forums I look at. the 5 percent of the time I get the GPS error. I simply click Community and Recent again and so far, it has then always corrected to the proper lists.
As far as Logged on or not, I’m not sure I’ve seen any difference in the issue.
I consider it a “Glitch”.
One item I’d like is on all the other forums (Camping, Cars, Music) is that once I’ve looked over the recent topics, then a “Mark all as read” function is there. So when I come back to the forum in a few hours or the next day, I only see topics with posts since my last visit. Maybe that is already here and I’ve not found it.
Good luck on figuring the issue out.