The dashboard relies on a cookie to cache some data. in the previous version of UBBT7, that cookie could have become corrupt. This corruption was a bug that was fixed in the current UBBT8 release.
When you installed a new instance of the older UBBT7, you may have used the same cookie prefix as your main forum, which overwrote your proper UBBT8 cookie with the corrupted UBBT7 cookie.
as instructed previously, clear your cookies again, so now you are back to using proper UBBT8 cookies.
https://www.ubbcentral.com/forums/u...e-upgrade-to-8-0-complete-but#Post266243an update to check for corrupted cookies will be available in an upcoming bugfix release.
