From what I have seen/tested the latest DayZ patch seems to have addressed the building 'issue' with items falling through the floors. However, the fix only works on newly placed floors. Any pre-existing floors before the patch will still encounter the previous issue. (Replace your floors etc).

Agree, a lot of us dump endless hours into running communities/servers because we have a love for the game. Quality-of-life fixes are far more critical and important than getting new items/map additions.

Here is another RPT and mdmp log from a crash which occurred this morning.

I have also been having this issue since 1.22.