The Ultrawave and Artifakt have the most parameters of any SA pedal. It makes sense it might take longer to burn a preset from the app. Can you try going a bit slower when communicating with the pedal and see if this helps? Thanks!
Okay, so I did some tests
Phone (Samsung S24+) > OTG adaptor (Samsung from my old S10) > Generic USB-A to USB mini cable.
Deleted the pedal in the android app, connected pedal, add pedal.
It takes around 20-30 seconds for the Pedals > My Pedal > three bars section Pedal to be populated with the number of slots (prior to that no slots are listed)
It takes between 30-60 seconds for the Presets to load in that list - some presets continue to show blank.
Note that I only have 6 on the pedal.
Then I slowly started going into the three bars section and clicking on pedal presets. Usually leaving at least 5 seconds (sometimes more) between changes. At some point the connection got messed up.
So I unplug, delete the pedal, click add pedal, reconnect the pedal, finish the add. Leave pedal for 1 minute. Presets are not all showing names, but select one and leave it a minute to allow it load - messed up connection.
So I delete the pedal, re-add. Wait a bit and then select a slot. Pedal changes and preset screen updates. Wait 15 seconds or so, change slot - it changes and after a delay, the preset screen shows the preset data. Do it again (wait 15) - preset screen doesn't update. Do it again (wait 15) - preset screen updates. Do that a few more times and maybe 50% of the time the preset screen updates to what is on the pedal.
I try to see what happens if I just switch as fast as I can - strum a note, then three bars select a slot over and over again - switches slots fine, but the preset doesn't always update on the screen.
Disconnect the pedal, reconnect, and switch through the slots not overly fast but not slow either. It's switching slots, but not updating the preset on screen at all. Disconnect/reconnect and we're hosed again.
I'm not sure if it is supposed to, but when I select a slot from the pedal, the preset editor never shows the preset name from the pedal, it always shows "New Preset"