Can't change tempo in list view ( View > Tempo Editor > List )

[ViktorNova]

Changing the tempo graphically or through the transport window works fine, but I am unable to add (or remove) tempos from list view. The window pops up, but none of the buttons do anything, and it does not display any existing tempo changes that are present

[ViktorNova]

GitHub auto-closed this one too, I'm guessing because I referenced my fork's issue in a commit and when it merged, GitHub got confused (oops)

this should be re-opened

[falkTX]

ok