This error involves the Advanced Emplacement Regiment commander. That allows Infantry Section, the build emplacements. But a problem if it starts building a emplacement, the Royal Engineers can not help build faster, and this condition also limits the Infantry Section, if a Royal Engineer start building a also (can not help build faster the Infantry Section).
If want, ordains a squad of Infantry Section build a Bofors, having already a squad of Royal Engineers. When still squad Infantry Section is built, try order the Royal Engineers to help, will appear disabled to enter in the building. This also happens if Royal Engineers start a building to Infantry Section.
Game Mode/Type: Automatch
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