Bug in Workshop

[Colmaw]

I have upgraded my workshop pit to the house I built the leather worker on one side but want the weaver on the other but it only gives me the option of the upgraded weaver I cannot build the weaver with the upgraded building.

[Fortigan]

The Weaver and Dyer both have an improved version. Only the improved versions can be placed on the top tier workshop and you can't unlock them till you build the base versions. To build the base versions you need to build them on a tier 2 workshop. I realize this makes no sense and I assume they will allow the base versions to be put on a tier 3 workshop eventually, but for now, you need a lower tier workshop.

It's a huge pain, but you can dismantle it, get the resources back, then rebuilt and add the weaver before you tier 3 it again. Just know that the inventory of the workshop will vanish when you destroy it, so empty it first. Also, you want to put the leather on the left side (when facing the front), or the entrance will be facing the wrong way.