I can’t reproduce the muscles not following for the two of you experiencing it. Very strange. From what I can tell from your movie, the graph and sim settings look correct. I’ve tried with both animations, lift weights and ROM, can you swap out to the ROM and try that?
Also, as Yushan mentioned, check the spreadsheet to make sure the ‘Kinematic’ vertices are ‘true’.
Check to see if your Chaos Cache Collection is being written to. It should show up with an asterisk in the content editor.
