Play plus seq synth

hello, im trying to sync play plus with synth and i dunno why i cant seq the synth inside the midi tracks of the play plus via midi jack
play plus midi jack out to midi in synth
in synth: midi channels of the 3 synth : jack 1
in play plus in a midi track: jack 1.
in settings i think all is ok via midi jack but i put steps in play plus and the synth doesnt sound…
Here is a video , what I’m doing wrong ? Thanks

Looks like the setup is right to me. Are both the adapters you are using TRS-B MIDI that came with the devices or could one have been swapped for TRS-A?
Do you have a regular 3.5mm stereo TRS cable you can connect between the 2 devices?

Hi, both adapters are original of Polyend. I dont have now a stereo cable to link both but will try

Question: the 3 synth engines that you are running… Are any of those set to use a sequence or are they just simple notes without an Arp or sequence?

I tried simple notes,arpa,seq,… all and nothing

Ok then i would say the best thing to try, is to see if a 3.5mm stereo cable between the two device will work. Just to be sure there isn’t an issue with the TRS ↔ DIN Adapters.