I upgraded my hacked 5.47 UBB to 6, beta version 74. I thought I had stripped all extra member file fields, but evidently didn't before upgrading.
The upgrade worked fine, but when I switched over, the numbering system that assigns a member number to my new registrated users on the board started back over at #1.
I had about 1870 registered users before switching and am now up to 1888. The last 15 or so have been assigned member #1, #2, #3, etc. up to #15. These are writing over the original registered users of my board who had numbers 1 to 15. I'm not panicking yet because my board has been in operation for a few years and actually these early registrants aren't still active--but soon (around the 200's or so), it will start getting to users who are still active in my board (I'm the moderator and my registration number is actually in the 900's). I've seen the problem reported once or twice more on either this board of infopop's site.
I'm wondering if this problem might correct itself when we get out of beta or if there is something else someone can suggest at this point to try to make the program stop assigning numbers in the teens and re-start in the 1900's so it doesn't overwrite current registrants.