I've around 6 players on my home hosted network server, so it's very small not a lot of data. Players are CA, NA and Europe.

Two players have rebuilt Nasdara houses, both have lower metal doors. One house is fine, no issues. The other house, when any player attempts to interact with that door, there is a 30 second server lag where everyone gets frozen.

Even if I, using admin powers remove the vanilla lock, the problem still occurs.

Attaching any vanilla door lock to the neighbours metal door, again everything is fine.

I suspect this house in question was built before a recent update, whilst his neighbours home was built after that update? His neighbours property is still work in progress and still actively being built.

Ironically the server RAM and CPU usage don't appear to be climbing very much. However, whoever interacted with the door has their CPU maxed out.

Today I made this quick video, I had already removed this guys vanilla downstairs doors and replace them with metal fence gates. I have also discovered this is not limited to his doors, his windows also cause the same issue. At the end of the video I nip upstairs and open his remaining vanilla house door.
Just wondering if anyone else has encountered this?

Unsure, it only seems to effect this building, hence why I feel a recent update may be to blame for this?

Expected results include being able to interact with this guys vanilla doors and windows without a huge 30 seconds server lag, that doesn't actually seem to tax the server itself, just the local users CPU seems to max out.