Good job on the 1.4.13 beta release! The new app bundles work flawlessly on my Wear OS 3 and Wear OS 4 emulators. 
Unfortunately, on current hardware (with Wear OS 3) the watch faces are really slow and buggy:
- Sometimes the complications break and the text becomes
__placeholder. Icons aren’t working either.
Going into edit mode and back fixes it for a while. - Sometimes the always-on version is not shown when locking the device. Instead the normal view is visble and draining the battery. Unlocking the watch multiple times fixes this issue.
- The performance is really bad. E.g. the animation for tapping a circle complication is sluggish (like only 3 out of 40 frames are shown choppily). No issue on emulator though.
- The color picker in the face watch editor is hard to navigate on Wear OS 3. Swipping up and down changes the color palette once (way too slow). Using the physical crown is really hard because each tiniest tick changes the color palette (turn it by 10 degrees and you just skipped 10 colors).
I can’t test this on real hardware with Wear OS 4 since … well, there isn’t any hardware to test yet. 