Thanks for playing again and finding those pesky bugs.
The second bug you described is caused by something i did to prevent a different bug just today. Seems like i always have to create new bugs for DD.... Anyway, before this behaviour your character could get stuck next to a barrel and wouldn't attack it just because of some float distance stuff so i put in rounding. I thought i put something in so there is a little bit of leeway for melee attacks, but i guess i missed something.
Will investigate the invisible item drops right away.