[BUG] MPBundle wont unstack in bag

[Snufkin]

What: Tried to unstack MPbundle.

Where: Bichon safezone.

Description: As title, the MPBundle wont unstack in bag despite there being plenty of slots.

Screenshots:

 

[jaffar91]

bad times =/

 

[Samuel]

Not been able to reproduce this. Thinking maybe it was a spot of lag?