Fill command completely breaks when you use negative numbers

[jig487]

Descripe

Not sure what is happening but the fill command hates negative coordinates.

Steps to reproduce

do fill(-20,-20,20,20,0x000000)

Version

Own compiled build

Minecraft, Forge and maybe other related mods versions

0.7 dev advanced peripherals. 1.16.5 minecraft

Screenshots or Videos

https://imgur.com/a/N9Fo9y4

Crashlog/log

No response