The Dreaded Tranny Pan Leak

I tried the right stuff, only to find the tube was seeping.
That stuff was hard to get off, so I didn't use it on the next new pan install. lol
Even had the good Moroso gasket on there one time. Damn leaky dip stick tube. lol
I have checked the dip stick tube several times, no luck, it is sealed up good. I was hoping that it was the tube o-ring it would have been an easy fix.