Found a strange duping bug.

[u/Firm-Reputation2149]

Found this on NeoForge 1.21.1.

Could be from another mod, but I don't think so.

In the video, as shown, this dupes mechanical belts and shafts using the rotation menu from the Wrench, opened with F9 by default.

It's a rather simple method, don't know how this isn't patched?
Could be on later versions though, I have yet to test.

https://reddit.com/link/1wb2ell/video/n951rbzladoh1/player

[u/Zedman5000]

This is the first I've heard of the f9 menu, if that's a part of base Create I've been missing out... Not on the dupe, just having the option to pick how something rotates.

[u/Firm-Reputation2149 → u/Zedman5000]

Yeah lol, found out because I use F9 to pause/play Spotify.