Bug: Echo Mode + Just Lift prevents the user from doing a second set

[kelltom]

To recreate, I first do a normal set with Echo Mode, with Just Lift enabled.

I can do this set just fine.

However, I notice the auto-stop feature "spins". The console shows multiple Stop commands being sent. While the weight does stop, it appears that I can't begin another set beyond this point. I can pick the handles back up and do some reps, but it's weightless and nothing happens. I can click "Start Echo", which seems to restart the set, but warmup reps won't count -- weightless.

The only fix I've found is to refresh and reconnect.

Here's the steps of me doing a normal Echo Set, waiting, then trying to do another set:

After the set, the webpage shows this for a number of seconds:

Then, it shows this. So far, so good:

During this wait, I see this in the console -- constant repeating what seems like an endless loop, but after a while, it stops:

Workout stopped!
Workout stopped by user
Workout completed and saved to history
[notify c7b73007-b245-4503-a1ed-9e4e97eb9802] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[notify 67d0dae0-5bfc-4ea2-acc9-ac784dee7f29] 00 00 00 00
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!
Workout stopped by user
-> Stop command (4 bytes): 0a 00 00 00
<- Stop command acknowledged
Workout stopped!

Since we are in Just Lift mode, I'd expect to just pick up the weights to start a new set. If I do so, the Warmup Reps do not increment, and nothing is appended to the console. Warmup Reps are at -/3. So, it seems we are totally idle.

If I hit "Start Echo" again, the UI changes to indicate I'm starting a set. However, as I pick up the weights, the Warmup Reps do not increment, instead they stay at 0/3. The console shows this:

Starting Echo mode: Hard level, 100% eccentric
Sending Echo control frame (32 bytes): 4e 00 00 00 03 ff 00 00 64 00 32 00 cd cc cc 3d 00 00 80 3f 00 00 48 42 00 00 00 00 00 00 c8 c2

And at this point, I'm inclined to refresh the browser. However, as I sit here typing this issue, I noticed that the "Start" command issued successfully to the device, and I was able to continue a set. I couldn't catch the console output for that, but as I stopped the set, I saw this, frantically repeating again:

ending STOP command...
Auto-stop triggered! Finishing workout...
Sending STOP command...
Auto-stop triggered! Finishing workout...
Sending STOP command...
Auto-stop triggered! Finishing workout...
Sending STOP command...
Auto-stop triggered! Finishing workout...
Sending STOP command...
Auto-stop triggered! Finishing workout...
Sending STOP command...
Auto-stop triggered! Finishing workout..

---

So there might be some bugs in the communication. And endless loop somewhere in the code. Sorry for the sprawling notes -- it's hard to diagnose the behaviour.