The "WMA — solid post" part seems like shorthand or a comment on a forum/review — maybe you’re saying the episode was a (as in post-episode discussion or post-season return).
"Don't touch the links, Morty! If you touch them, it redirects you!" rick and morty s06e01 wma
(Panting) "Oh, man. That was terrifying. I thought I was gonna be redirected to the dark web." The "WMA — solid post" part seems like
"ERROR. File corrupted. Source: Unsecured public forum. Re-routing." That was terrifying
It sounds like you're referring to the Season 6 premiere of Rick and Morty (S06E01).
Following the catastrophic Season 5 finale where Evil Morty destroyed the Central Finite Curve, Rick and Morty are initially stranded in the ruins of the Citadel of Ricks. 'Rick and Morty' Season 6 Episode 1 Review: 'Solaricks'
"FILE NOT FOUND... ERROR 404... GOODBYE..."