This seems to be caused by the server switching from rejecting all hits above 6 blocks to rejecting all hits above 4 blocks. PaperMC recently created a patch that allows you to change this value, and setting it back to 3 (to make it a 6 block limit) makes behavior return to pre 1.20.6.
TheDeafCreeper
This seems to be caused by the server switching from rejecting all hits above 6 blocks to rejecting all hits above 4 blocks. PaperMC recently created a patch that allows you to change this value, and setting it back to 3 (to make it a 6 block limit) makes behavior return to pre 1.20.6.
Also I believe this affects 1.20.6 and 1.20.0.