I used this feature in version 1.16, and all my settings in 1.17.1 are the same as those in 1.16, but it doesn't work when I try to use this feature in 1.17.1.
litematica version:fabric-1.17.1-0.0.0-dev.20210713.103711

This should be fixed since the 2021-09-06 release.