[Bug] Change Short Instrument Name

I was trying to change the short instrument name of the Vibraphone, but whenever I did that it wouldn't change. Instead, the name of the next instrument (in this case, the Marimba) would change automatically to "the Vibraphone", which is not what I intended to do.

Not sure if this only happens to vibraphone and marimba or other instruments as well.

Pic 0 is the original state, with vibraphone and marimba
Pic 1 is when I'm trying to do
Pic 2 is what eventually happens

Update: I changed the last instrument to vibraphone/marimba in another measure and the problem is solved. The problem is possibly due to changing instruments at the beginning of a new staff.