I died with a planter in hand, right before the door in the shack. I couldn't pick up the planter, I could access the menu either. I was safe from harm, though.

After checking, it was not set to "Ignore if cannot move", so forced you into infinitely trying to walk into the square the PLANTER occupies.

I've fiddled about with it a bit and it should prove less likely problematic moving forward.

Thank-you for reporting this, it's the smallest random glitches which crop up for others that somehow I never triggered myself.