Slight smell where the LP Gas cylinders are located normal?

Folks::

Never ignore the smell of propane under any conditions. Someone noticed a leak on Rockwood Roo years ago. If he hadn’t said anything, it may have killed me and my family. I got where I close the tanks every night before bed.

Also had another incident that a newly replaced alarm in the camper caught a valve on the stove that was hit by my son that was just ever so leaking while we were sleeping. Super dangerous.

You are doing the right stuff, keep at it till you get it fixed.

Peace.