[1.12] Completely broken on servers.

[JoshieGemFinder]

Forge 14.23.5.2860, Minecraft 1.12.2

Description: When attempting to start/stop building, mod will ignore the face block was placed on, change starting/stopping position arbitrarily, fails to place blocks etc.

Steps to reproduce the issue:

1. Connect to a server (not sure if ping affects it here)
2. Try to do anything with a buildmode enabled.

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Buildmodes/Modifiers: all

Definitely Survival, probably Creative

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[Requios]

1.12 is not supported anymore