Workarounds and other methods to get to the same visual result notwithstanding: It is a bug and it's replicable. It behaves quite erratically, however. I don't get the "math" of the bug yet. It's a "sum" of certain tab, left indent and frame inset values: apu_indent_tab_column_bug.mov Pinging @SPaceBar or @Gabe or @Pauls to have a look at it and forward it to the devs, please. Affects 1.9.2 beta as well.