[Bug][Engine] New Objects interrupt skill mask in a non-interrupted instance

[GigaLem]

While the topic may sound confusing, here is a lemming highlighted to show the miner tunnel facing left.
Each object is tagged correctly and Lemming will mine the tunnel despite the new object (skill adder in this case) saying other wise.

this also makes Miner+builder tunnels difficult to judge because of the skill adder stopping the mask preemptively showing an incorrect mask outcome.