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/solid_mobs command with options for all config settings to allow tweaking in-game (server usage requires operator permissions).entityBlacklist subcommand to tweak what collisions are enabled in-game.listRecentCollisions subcommand to list recent entity collisions to aid with identifying and blacklisting unwanted collisions.platformMode option when true mobs will only collide on their top side, and you can press crouch to fall through them like a platform.canNonSavingEntitesCollide option to control collisions with non-saving/null entities (occasionally used in mods for decorative or logical purposes, like wall jump).falling_block entities to the hard coded blacklist, various reasons/issues.