same here with ios 26 beta 2. 

Fitness app seems super buggy in WatchOS 26. It has always merged segments in intervals for me since beta 2 (Run+rest can end up as one segment, which confuses Runna). Since beta 5 (public beta 2), I’ve noticed that it sometimes stops counting distance during runs (maybe only preloaded workouts), and as mentioned, Strava crashes when trying to import.

Runna is able to import though, so you can get your workout to Strava via Runna.

Hi all, thanks for reporting the issue, moderators were notified and should bring this up with the devs. Hopefully we'll get an update in this thread soon.

Hi, just adding this is the same for me on iOS 26 beta 2

Same issue this morning with iOS 26 Beta 2, no automatic import, and the manual one crashes.

I was able to import the GPX but it’s just a workaround until the fix.

Just UPD looks like only running activities is affecting, for example walking activities are fine and exporting just fine

Automatic import works fine on outdoor running workouts but manual import crashes the app on iOS 26 Beta 2

Both automatic and manual import fails for me for outdoor runs running beta 5 as well as beta 6 released yesterday.

Just to add an idea regarding a temporary workaround… it's not optimal but at least to be able to sync - there are various 3rd party apps allowing syncing: 

https://www.strava.com/apps/data-importer

(Personally I’m using RunGap, not specifically for this purpose - and there's a small fee - but it does support also syncing from Health to Strava. And hey it imports also the running cadence data which are missing in the direct import )

Same issue here. iOS 26 Beta and from this morning (yesterday I’ve imported another running activity as usual and no issues), the outdoor running activity logged from Apple Watch not able to be uploaded to Strava. App crashes and brings me back to home screen.

Any updates?

I’ve noticed that the issue occurs when I do a custom workout. ‘Open’ runs upload without issues, at least so far.

I was able to manually upload my run today since it didn’t auto import. So strange. But my old runs were still crashing the app.

Same deal here.  Rarely upload from Apple workouts but had a new run (custom workout) today that crashes anytime I try to upload it.  Also running iOS 26 beta 2

Yep also running the WatchOS beta and any custom workouts cause Strava to crash upon import. 

My workaround has been to use the HealthFit app to push them into Strava for now.

Yeah I’m having the same issue, only when using custom outdoor runs so far, normal works fine. Will Strava look at this thread and release an update?

Does anyone use Runna? The run doesn’t even appear in there to me manually linked 

£6.99 is an expensive workaround haha 

Joining and downloading the Strava Beta / TestFlight app solved this issue for me. It seems to be a newer version than the in App Store. 

Just google Strava TestFlight or go via this link 

Strava TestFlight

Is there any update on this? Strava is the only way to log “Virtual Runs” for NYRR, and there’s a few coming up on the calendar. 

download the strava beta / TestFlight will solve the manual upload issues. Google “Strava TestFlight” and join the test

Same issue here.

App atempts to upload and shows activity indicator.

iOS 26 Beta 6 (23A5318f)

iPhone 14 Pro Max

Happens when I try and import a Custom run.

Custom run was set up as 

No warm up

5 min work - 1 min recovery

No cool down

If that helps any devs in trying to recreate the issue.

default    17:40:36.282166+0100    ReportCrash    client log create type 309 result success: /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.osanalytics/DiagnosticReports/Strava-2025-08-17-174036.ips
default    17:40:36.287448+0100    ReportCrash    com.strava.stravaride is not a MetricKit client
default    17:40:36.307262+0100    ReportCrash    recordCrashEvent; isBeta 0, log: '/private/var/containers/Shared/SystemGroup/systemgroup.com.apple.osanalytics/DiagnosticReports/Strava-2025-08-17-174036.ips'
 

Awesome, worked for me too! Thanks!

When can we expect it to be fixed in the GA version?

I am currently experiencing this crash issue, as stated above, and I am unable to join the TestFlight Beta as it says it is full. Is there any update on this being fixed ​@Jana_S?

Hi ​@LewisV21, just to avoid misunderstanding, I’m a fellow Strava user like yourself, not affiliated with Strava nor Apple. I’ve seen a note from Strava that they've reported this problem to the Apple team, but nothing new since then I’m afraid. So hopefully a fix will come soon, fingers crossed!

Edit to add: just in case, you can also send your observations to Apple via the feedback assistant (apple ID login required)