I was just doing a Zak run on my IL mage and some buffs not expiring. Also not expiring but didnt manage to get it on SS: Graham Pie Holy Shield Although, not all buffs remained permanently active at first but while being afk in FM, while writing this I can confirm it's all of them. There also was a Bucc in my party tho he left before I made this ss. I did right click the buffs to manually cancel them after their duration for the remaining boss run after I noticed. Reclienting resolved the issue.
Yeah, there has been a few reports on this here and there, and it's something we've been working on fixing (easier said than done). You did the right thing by right clicking the buffs to cancel them at the end of their duration, and then reclienting and reporting the glitch I'm going to close this as it's already known, but please know that we do appreciate the report