First, head over to FBW’s Github or Discord if there are issues with the mod.
Second, there will obviously be quite some changes under the hood over the next months, especially with ongoing optimizations. Therefore, broken mods after patches can be expected for a while.
Would be good if Asobo would publish what they changed and why so that mod devs would have to figure out less by themselves. I understand that this might be difficult to achieve for several reasons, though.