Even the regular BWM example pics of the kiln structures or the crash course manual pics of the windmills end up as dead red links. Have tried rebooting, but to no avail. Were showing up just fine before inclusion of BWA into pack.
Using the following versions of the mods: BetterWithMods-1.12-2.3.16 & BetterWithLib-1.12-1.5 & Better+With+Addons-0.46

if this still persists after next release i have officially no idea why it happens