On watchOS 27 my app's round complication on the Infograph face disappears for about a second every time I raise or lower my wrist, then comes back. It only happens in the small round dials of that face, only when the face is set to a single color instead of Multicolor, and only when Always On Display is turned on.
Everything else on the same watch is fine. my complication placed in a corner of the same face, the same face set to Multicolor, and an Apple complication sitting right next to mine. Other faces set to a single color are fine too, including in their round slots - I tested Modular and Meridian among others. With Always On Display off there is no problem either.
What I already checked is:
- It still happens when my complication is the only one on the face.
- It still happens when the complication shows just a single line of plain text.
- The data is not being reloaded. I displayed the timestamp of the entry inside the complication and it does not change across the gap, so the same content is simply being redrawn.
- Removing the complication and adding it back does not help.
- Rebuilding with the newest Xcode changes nothing, and an older build behaves exactly the same.
The same app, unchanged, worked correctly on watchOS 26. This started right after updating the watch to watchOS 27.
Has anyone else run into this on watchOS 27? And has anyone found anything on the app side that makes a difference? I have not found a single thing.