Unable to fill in missing piece of stone wall

Played skirmish 1v3 AI. As shown in the pictures, I could not close that wall gap straight, had to build around despite nothing blocking it. Pieces of the wall were built while there were trees in the gap.

Game version: 5.0.24916.0
Map: Prairie
seed: 7444f11e

Appreciate the report and screencaps @AirManatee57627. I’ll make sure the team sees this.