1.19.3 to 1.16.5 does not work.

[watercaustics]

Latest Version?

• I confirm I have the latest version of multiconnect

Description

I have Version 1.6-beta.25, and my client is 1.19.3 Fabric. I am trying to connect to a 1.16.5 server, but no matter what I select, the server's default error for outdated server shows up.
In the minecraft logs, this is what appears when I join:

 [16:44:11] [Render thread/INFO]: Connecting to 116.buildersrefuge.com, 25565
[16:44:11] [Render thread/INFO]: Size changed to 2560x1440 2560x1440 1280x720
[16:44:11] [Server Connector #6/INFO]: Discovered server protocol: 758 (1.18.2)
[16:44:13] [Netty Client IO #23/WARN]: Received invalid channel identifier "legacy:fml|hs" from connection net.minecraft.class_2535@1065e2c4
[16:44:20] [Render thread/INFO]: Size changed to 2560x1440 0x0 1280x720
[16:44:28] [Render thread/INFO]: Connecting to 116.buildersrefuge.com, 25565
[16:44:28] [Render thread/INFO]: Size changed to 2560x1440 2560x1440 1280x720
[16:44:28] [Server Connector #7/INFO]: Discovered server protocol: 758 (1.18.2)
[16:44:30] [Netty Client IO #25/WARN]: Received invalid channel identifier "legacy:fml|hs" from connection net.minecraft.class_2535@68a9472f
[16:44:51] [Render thread/INFO]: Size changed to 2560x1440 0x0 1280x720
[16:44:52] [Render thread/INFO]: Connecting to 116.buildersrefuge.com, 25565
[16:44:53] [Server Connector #8/INFO]: Discovered server protocol: 758 (1.18.2)
[16:44:54] [Netty Client IO #27/WARN]: Received invalid channel identifier "legacy:fml|hs" from connection net.minecraft.class_2535@6f7b38c2
[16:44:59] [Render thread/INFO]: Size changed to 2560x1440 2560x1440 1280x720

I have tried changing 1.16.5 to 1.16.1 and also lower with no luck.

I have also tried testing with no mods and only multiconnect and fabric api, same problem.

Log File

https://hastebin.com/share/buteqajama.makefile

Crash Report (if applicable)

No response