Check your quick key assignments - both your trunked and conventional systems need at least 1 - it can share a Site/System QK, or you can assign separate ones, depending on what you are trying to accomplish.
If you were to post your file (not knowing what you are using for programming makes it difficult to say which is needed), others can take a peek at it and see what gives. But QK assignments are something that takes a bit of getting used to, since there are so many combinations possible.
best regards..Mike