What happened?

Whenever right click is pressed while hovering over a block, a number is displayed in chat.
Nothing besides this number is displayed, and it's very intrusive.
Happens with cheats enabled and disabled.
Debug Messages are disabled in the Config

I'll provide a mod list upon request.

Mod Version

5.3.5-1.20.1-Forge

What versions of Minecraft does this issue happen on?

No response

Log

[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789
[System] [CHAT] 0.0784000015258789

So, after a brief experiment, I learn that it's triggering on the "Place Block/Interact" function, rather than right click.

It stopped on it's own. I still don't know what was happening, but it's over.