hi
Thru is normaly sent to the midi driver make sure you are set up to send to your thru to something you can hear.
could be external midi device like say your keyboard if you have the driver loaded and selected.
See midi settings for this.
Mike


BIAB2021 UltraPlus,AsusN55S1Tbssd, W10/64,Akai EIEpro
Yamaha CVP405,SquireStrat, CoolsoftVMidSynth
Novatation Impulse61 Ctr kbd, Cwalk blab Kontakt

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