So yes, it sounds like the Factors are listening to the MIDI clock that is sent out of the OUT of the adrenalinn, so that is good.
So you need to merge the MIDIMATE MIDI out with the Out of the adrenalinn.
Sounds doable with a MIDI solutions MIDI Merger….not used a THRU box though so can't comment on that.
I had the same issues when I had a MIDIMATE with various pedals.
An M-Audio MIDISport 2×2 anniversary edition also has a Merge function that may be of help.
I have found it really helps to draw the MIDI connections out on paper to see the logic.