F1TDCModule needs a 4-arg version of LoadSlot
The Module base class has a 3-arg version and a 4-arg version of LoadSlot. Classes which inherit from this needs to define both, if they are to be used, or the base class's version will be used, which is probably not what we want. I think all this should probably be cleaned up (have only one version) but the quickest solution is to provide a 4-arg version of LoadSlot to F1TDCModule. I notice the other modules have this fix already.