Score starts moving erratically when adding Expression text

Sup Musescore, found a very interesting bug!

Got a 4 part score with different parts assigned and stuff. When I add an expression text to a note in one of my parts the score-layout on that page changes, the current four bars I'm editing start moving upwards whilst the next four start moving down and away. Haven't had time to check if it appears in other parts of the score as of yet sadly.

Steps to reproduce:
1. Open the tab with the Full Score
2. Go to bar 10 and select the high G (The eigth-note)
3. Hit Ctrl + E
4. Start typing/removing letters and those four bars should start moving up the page whilst the next four bars start moving down and sideways.
5. Remove the system break to correct it back to normal.

Currently running an up to date Win10 on the MuseScore-version above.