[New_Builder] Engine error on start

Summary:
Received error as soon as I placed my flag. Started a new game with same choices and it didn’t error the 2nd time.

Steps to reproduce:

  1. Started game after installing as Ascendancy in Temperate at Normal difficulty, Merchant Caravan start.
  2. Placed flag.
  3. Received error.

Expected Results:

No Error

Actual Results:

release-815 (x64)
…hearth/services/client/building/building_service.lua:787: attempt to call method ‘set_working’ (a nil value)
stack traceback:
[C]: in function ‘set_working’
…hearth/services/client/building/building_service.lua:787: in function ‘_set_building_selected’
…hearth/services/client/building/building_service.lua:271: in function ‘_update_current_building’
…hearth/services/client/building/building_service.lua:186: in function ‘_building_data_changed’
…hearth/services/client/building/building_service.lua:157: in function <…hearth/services/client/building/building_service.lua:156>

Version Number and Mods in use:
release-815 (x64) without Mods

System Information:
Windows 10