GigaLem's screenshot from Discord illustrates this best:
(https://media.discordapp.net/attachments/249728893655842816/640371080833531917/unknown.png)
Things are fine when using the tabbed option, but because I wasn't aware this option existed, I hadn't accounted for it at all, and the new tab seems to have messed things up.
This bug exists in V1.15 and above.
On top of that, I can't use that function because the skill names are obscured. Good thing I caught this while it was in the RC stage :thumbsup:
The "RC stage" thing is more about the player than the editor - the editor is just updated as needed. So, this might not necesserially be fixed at the same time as V12.7.0-stable is released - but on the flipside, it doesn't have to wait for V12.8.0 or V12.7.1 either, the editor can be updated in its own time. Most likely, I'll look at an update to fix this shortly after NL V12.7.0-stable is released (as in, within the following day or two).
Fixed in commit 288aecd (a few previous commits are also work towards this).