If you mean where the rim is bent into a circle, and joined, then no, not normal.
Yes- this. So where the rim it self is joined together. I looked at the tape again and noticed it doesn’t go all the way up the inside rim wall. Is it supposed to go all the way up? I thought it just covered the “flat” section, ie not the vertical part. Either way, in theory the tyre should press hard enough against the rim to stop air coming out anyway.
Didn’t hear any pings at all, which I always get on my other rims even with the airshot which was odd.
Might add some more tape on the offending section add sealant, pump and pray!