Unlocking the entrance door

"The key is open but the door doesn't move"

It looks like a normal apartment.It does not seem to be a highly confidential property like an apartment.The door doesn't move.I have no idea what the situation is.

Arriving at the site and checking. It is a hybrid card lock of MIWA U9.MC25.It is true that both the dead bolt and the latch bolt are unlocked, but the door does not move to the front or back. It's a mystery that doesn't move even a millimeter.

Since there is a door post, when I check it with CCD, I can see that the U-shaped lock (door guard) is in a strange position. (I wonder what it's all about)

Upon careful observation, it seems to be completely bitten and fixed. (How to proceed)

It was pushed in from the door scope with a special jig, returned to the normal locked state, and then unlocked normally.

The cause is due to the thickness of the rubber cushion attached to the door frame. It's a cushion about 1 cm long.I think there is a possibility of recurrence, but will the management company repair it?Even so, it was a very rare case.