I develop with the stearman 4x5 tank and have been having great fortune developing switching between coffee and wildflower developers but recently I tried a new developing solution with beer and had unsuccessful results. I'm assuming these are agitation errors perhaps? But what is strange, I developed 4 negatives at once and two of them appeared to have pattern of the stearman tray embedded on them while the other pair just seemed to have a few developing error splotches.

Is there any reasoning for this strange embedded?

I've attached two to compare, one of the pairs with just minor splotches, and the other the embedded stearman tray imprint on it.

Appreciate any insight? (Don't mind poor scans).

https://drive.google.com/drive/folde...AI?usp=sharing