Hello when i use the Editor Extension mod and trying to place the trainbuilder controller i get this crash but only when in the editor surface

The mod Train construction site (0.2.18) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event trainConstructionSite::on_built_entity (ID 6)
Unknown force: EE_TESTFORCE_1-trainControllerForce
stack traceback:
[C]: in function 'newindex'
__trainConstructionSite/src/traincontroller.lua:187: in function 'saveNewStructure'
trainConstructionSite/src/traincontroller.lua:847: in function 'onBuildEntity'
trainConstructionSite/control.lua:67: in function <trainConstructionSite/control.lua:60>

I will also post this on the modportal for said mod