Thread:Project:Support desk/User preferences won't save (no error)/reply (18)

The same error was happening to my wikis after upgrading to 1.19.3-2. After installing a fresh wiki, this one has worked good from the beginning. For some reason I've compared the databases and what I've found is that emptying the field "user_options" from table "mwuser" leads to the former wikis to work again saving user preferences and all.

Hope it helps.