Camera app not able to change mode after taking panoramic picture

• ROM build version (date):
  Noticed this behaviour at least in the last 5 builds (on different zuk z2's)
• Steps to reproduce:

1. Go into the camera app (default, I do not have a 3th party camera app installed)
2. Change the mode to panoramic.
3. Take a panoramic picture (this is important)

Now the on screen button to change the mode back to normal picture, or video mode, is grey and not usable.

Temp fix: Close the camera app in task switcher and reopen app.