Doesn't seem to play nice with B9 Part Switch

[TPP122]

Ive been working on a pretty expansive modpack and when using the following Sterling mods B9 says something akin to 'cannot find matching module for (ModuleID=Capacity) for various parts.
Sterling mods used:
Sterling Systems Agency
Sterling Thermals
Sterling Utilities
Sterling Thermals - Exotic
Sterling Thermals - Power
Sterling Utilities - Construction
Sterling World Power
Sterling Tankage (personally I'm blaming this one)

[TPP122]

I removed Sterling Tankage and then it just gave me errors for another sterling mod :(

[yknBugs]

Same issue, but seems deleteing Sterling Electrics - Fuel Cells and Sterling World Power can solve this (no need to delete Sterling Tankage).
If I only delete Sterling Electrics - Fuel Cells but keep Sterling World Power, then B9 Part Switch will throw a fatal error and game crash.
If I only delete Sterling World Power but keep Sterling Electrics - Fuel Cells, then B9 Part Switch will say the same serious warning.
If I keep both Sterling World Power and Sterling Electrics - Fuel Cells, then B9 Part Switch will not throw the fatal error but still produce the same serious warnings.
Tested with Far Future Technologies, KSPIE and Cryo Tanks, not sure if it can work with parts only from sterling systems.