[Alpha 9 build 256] Errr msg when promoting 2° weavers

Title:
Errr msg when promoting 2° weavers

Summary:
Infinite loop of error msg when promoting my 2° weavers.

Actual Results:

hey there @artifus … thanks for all the reports! :+1:

this should be easy enough to reproduce… you are literally just crafting two of the tools, and promoting two units to the weaver?

yes. i have created one weavers but this one die… goblin
i created a new one weavers --> bug.

i have 2-3 tools for create weavers.

There are a lot more units dying now due to goblin invasions.