Hello again @Momentyne!
The development team have been taking a closer look at your report, and would like to collect some additional information from you.
The team would like to know if you have disabled your Mini Quest Log Interface. You can check this in "Options > Interface > Mini Quest Log." If you have disabled your Mini Quest Log, please could you enable it to check if this resolves the issue?
If you're still unable to use TAB to open the Quest Log when the Mini Quest Log Interface has been enabled, please don't hesitate to updat...