Perhaps I am misunderstanding and I did stop playing for like a month-ish until recently but Z-level healing looks like it was changed as far as i'm aware?
January 14 2019 Changelog - Xenos can heal regardless of Queen Z level, but Queen's pheromones and healing abilities still don't reach beyond her Z level. -
Yes, this is regarding on-weed healing.
Off-weeds healing wasn't intended to allow healing on the almayer for murder sprees and as such it no longer works if you're not on the same Z level as the Queen.
On-weeds healing works regardless of Z level.
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