Hi, as far as I'm aware, this issue affects anyone trying to generate full tiles on the whole planet for zooms 13 and over. You can see it noted on this page https://m.mediawiki.org/wiki/Wikimedia_Maps/Tile_generation_report . Wikimedia has gotten around this issue by doing a partial generation on those zooms. You can see the error in Kue, and it is not version specific. I have maxed out ram at some points in generating at over 190 GB of ram. I've tracked it to promises through a NodeJS memory tracing program, but unfortunately all the tools I've found are vague beyond that. I apologize for being vague myself, but as I understood, this is a foundational problem that tilerator has suffered from since the beginning. MSantos asked me to post the problem here for documentation. If we move away from Tilerator for generation it isn't worth it, but if someone better at tracing the issue down was able to fix it in the meantime then it would certainly help us.