Watch face crashes on Software Version 20.26

TL;DR try turning off any Garmin weather features in your CIQ watchfaces

This might be related to a change in behavior regarding the retrieval of weather data in Connect IQ. Basically the weather observation location name is coming up empty (null) when it used to be populated. (This change was made for Fenix 8 and for recent firmware updates of other devices.)

It seems that some watchfaces were not written to handle this case, which is why they are crashing when they try to display the location name. (technically, a well-written app would’ve handled the null case, as it’s specified in the API, but in the past it may not have been a problem — at least not as frequently and consistently as now.)

If your watchface is set up to retrieve weather, I would recommend turning that feature off for the time being (if you can).

I would also contact the app developer and let them know.

In the bug report linked below, a member of the Garmin CIQ team explains that the observation location name is now basically deprecated in the CIQ API (which means that any CIQ watchface which was not written to properly handle a null weather location name will continue to crash until the watchface code is changed to handle this condition):

[https://forums.garmin.com/developer/connect-iq/i/bug-reports/cannot-get-location-of-garmin-weather-for-fenix8-series-devices?CommentId=3c7c4125-49e9-496b-b27b-b53a5ccd7371]

There is Weather widget which i dont use, but i turned it from garmin weather to none. I hope it will fix tthis problem.

Thanks! 

No worries!

But the problem I’m thinking of would only happen if a CIQ watchface was retrieving weather data using the CIQ API and it received a null location name it was not coded to handle.

I don’t think the built-in weather widget would have any bearing on that problem.

It’s possible that your watchfaces are crashing for a different reason, but I guessed it was the weather thing because:

- this is a change that’s happened recently and is affecting many watches (probably most or all of the watches that are still receiving regular updates)

- lots of watchfaces try to retrieve weather data

You could also try disabling your bluetooth connection for a while, as a test. If the watchface in question stops crashing, it’s probably because it was unable to retrieve the weather at all, and so this bug was avoided.

I mean widget in ciq watchface. And i have two of them installed and both use garmin weather source. And both got crashed the same time.

After setting them to "none" for now, no crashes occured :) 

If it's a Third Party (non-Garmin) watch face it's probably not Garmin's fault, and you should contact the watch face's developers in the first instance. They're probably making incorrect assumptions about the data they'll receive from the CIQ API.

You have a functional watch. I've never had problems with the stock watch faces and the stock weather glance.

I post on wrong topic, my watch is the 965, but if the developers of watch faces don't knowing what doing...why Garmin no stoping the rubbish on Garmin store ? it's not Garmin fault, it's not dev fault, the fault is me, next time not seeing my money.

Garmin says they review CIQ apps, but I doubt it's done on every upload:

https://developer.garmin.com/connect-iq/app-review-guidelines/

It's also not always possible for a developer to test on every watch on the market, or every firmware version.

Given the API for weather here https://developer.garmin.com/connect-iq/api-docs/Toybox/Weather.html it's possible that the Forerunner 955/965 is now unexpectedly returning a null value which isn't being handled correctly.

many thanks for your answer.

It's meaning at this time the devs not comply the guidelines, and puting on the page of watch face in store this watch is compatible with the watch face. and it's not true, and the most bad Beauvoirs made with paid watch faces, you pay and receive everyday a crash, you contact the dev and he tell the fault is from Garminits sad, maybe thinking we are all stupid people.