One image of a sequence sometimes left out and not uploaded

For some reason while uploading a sequence through the Android app, sometimes one image is left out and not uploaded. The image is the last image of a sequence. But when the image is copied to a computer and uploaded using the Desktop Uploader, it uploads successfully to the database. Just a strange thing I found while cleaning up my gallery. The app version is 6.6.11 on Android.

Oh, thanks for reporting. One image is kept for preview when the sequence is uploading. But it has to be deleted after the sequence was uploaded. Do you have this one image left even when you have uploaded everything?

BR, Yaro

Sometimes it has one image left after everything is uploaded, but sometimes nothing is left behind, it happens quite random. When I check the sequence uploaded on the site, that one image is not uploaded, but that image can be uploaded manually through the Desktop Uploader without any problems, so probably not because of GPS location/time issue.

Maybe the battery savings setting ?

Oh, that I didn’t expect. One question though, is that the first image of the sequence? Just to confirm that, as for now I can’t even imagine a case when it’s not the first image (including failed uploads).

BR, Yaro

I guess I might have accidentally clicked “upload now” when I am still outside and relying on mobile data, then I stopped it immediately when I realized it. This accidental click happens sometimes. Not sure whether it was caused by this. And that image which is left out is always the last image of a sequence, never the first or random image in the middle.

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Update: I guess it is not due to interrupted upload. I have captured several sequences today, and I only upload them when I am back home with stable internet connection, but still have a few sequences with the last image left out and not uploaded.

Interesting, thanks for letting us know. I will take a look on this issue, never seen it before.

BR, Yaro

Update: I checked the images before upload, from the “Ready to upload” in the Mapillary app, and also the local album folder. Some sequences have one image not saved in the Mapillary app and only saved in the local folder, so when the sequence is uploaded one image is left out. I guess this might be a performance issue probably due to overheat (This previous issue).

Here I attach some screenshots for reference. Last screenshot is the result after the sequences uploaded to the server.



@Yaro - are you able to take a look and chime in?

Thank you, @boris and @Zh9567, for bringing this up. We are currently rewriting the uploading logic, which should address the issue you’ve reported.

Please note that the resolution will not be included in the current release, but it is expected to be resolved in the next one.

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Best regards,
Yaro