I just got my Instrument 1, so this might be a question of not having enough practice yet
I get the same problem...
So far the Instrument 1 is absolutely fantastic, but the fretless+slide feature doesn't seem to work.
I don't know if it's a firmware update thing, but I hope it gets fixed soon.
Please let us know!
Can we please have a response from Artiphon?
I just received my I1, purchased from Bax Music in Spain, and speaking of breaking in, I noticed that the sensor pads for the 6th string have noticeably less sensitivity to touch compared with the other string sensors. In fact I have to really slam my fingers down, and even then the higher notes don''t always sound.
Is this a common issue, and is it just a matter of playing it in, or is my I1 defective?
For the moment I've only had time to try it with the Artiphon app on my iPad Pro.
I have adjusted all the relevant settings in the app, and the other string sensors seem to react very differently, so the problem is specifically with the 6th string sensors.
Just filed, thanks for the advice Nick!