Bug/Issue Multiple machines missing from shed

im playing on and iPad Air... this is my second issue with the shed. I build the darn thing to keep my machines and boxes safe... these two incidents happened 3 days apart:
1. I went inside the shed but could not leave. It looked like there was a wooden pole blocking the doorway... it was light brown, not like a fence post. The only way I could escape was with a bomb... which blew up several machines.

2. Tonight I was in and out of the shed... and on the last time in, all of my preserves containers (2) mayonnaise, loom, oil (2) had vanished. They had been there literally a minute before.

What is happening with the shed??? Is anyone else having a problem?