Acknowledged
CIQQA-3958

ConnectIQ simulator crashes on first call to Communications.transmit (macOS 26.4)

Hi folks,

I'm pretty sure it's something local on my Mac, but still, can not figure it out. I have an watch app that communicates with companion (bidirectionally), and since some time ago, I can no longer debug it using simulator, because *all* variants crash on attempt to send a message from the watch app (using adb bridge). Everything else works fine in terms of communication, i.e. the connection is established, companion sees the device, can send a message to the app, the app properly receives the messages, but on _any_ attempt to send a message to companion the simulator crashes.

This issue is 100% reproducible (on my Mac) using Comm sample from SDK as well. What is worse, it affects all SDKs that I can get hold of, and that worked fine till recently. Already tried erasing ~/Library/Application Support/Garmin/ConnectIQ to no avail, resetting simulators/different devices and etc.

I am able to reproduce the crash on another Mac running macOS 26.4. I wonder if that's the culprit for both Macs.

Example of the crash report for simulator is here (crashed thread is always TVM main).

Regards,
Grigorii