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didn't even know that ctrtl-rmb was a thing, so i didn't use that, and i did the pick up and placing back in the toolbar, but once i right clicked...
i just restarted my game, and now it seems that the shaped container extensions work fine all of a sudden, so, i dunno
Build:v1.11.9 4541 Mode:survival Platform: EPIC DLC Installed: none SERVER NAME: Eleon Game Studios - Official Vanilla Server SEED-ID: no idea...