/viaversion dump Output

https://dump.viaversion.com/993e3c33bb3b716c58c173bf318a053778a8e3b336139beea50f6e76b6c12dc0

Console Error

No response

Bug Description

Ladders will teleport you back down if you try to climb up them on any version before 1.9.3 (wasn't able to test this out on 1.9-1.9.2)
Carpets will do the same thing on 1.7.X versions, however carpets work on 1.8 and above.

Steps to Reproduce

Ladders:

1. Join a 1.21 (seemed to also occur on older servers as in 1.20 and 1.19 iirc) server on 1.7.X
2. Climb up a ladder.

Carpets:

1. Join a 1.21 (seemed to also occur on older servers as in 1.20 and 1.19 iirc) server on any version from 1.8 to 1.9.3.
2. Walk over any carpet block.

Expected Behavior

Being able to climb ladders and walk over carpets without getting stuck.

Additional Server Info

ViaProxy log

Checklist

• Via plugins are only running on EITHER the backend servers (e.g. Paper) OR the proxy (e.g. Velocity), not on both.
• I have included a ViaVersion dump.
• If applicable, I have included a paste (not a screenshot) of the error.
• I have tried the latest build(s) from https://ci.viaversion.com/ and the issue still persists.
• I have looked at https://www.spigotmc.org/resources/viarewind-legacy-support.52924/ and it does not offer a fix for my problem

That's a known issue which can't be fixed on protocol level and therefore won't be, if you use Via* on the serverside you can install ViaRewind-Legacy-Support but this won't get fixed with ViaProxy

damn that sucks ;-;