I have updated the compound creation checks to perform the following:

Primary - Result must be no more than +4 of lowest item rank

Junior - Result must be no more than +4/-8 of lowest item rank

Superior - Result must be no more than +5/-7 of lowest item rank

If the compound is not valid. Make sure the rank of the items you are adding are correct.

Let me know if anyone sees any issues as I have not tested every combination. Thanks!