Gallery not displaying images

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Posted on by BV-10090510-0

Hi,

We have a component that a user uploads images and then the gallery displays the images they uploaded, this has been working perfect for 2 months until the past couple of days, now when a user uploads the image if 10 minutes pasts the images will display as blank, was there a patch recently that added a time out session? On my computer i can't replicate this issue, this is only happening on the mobile app which is also set up for offline use.

I have attached 2 images, one is what happens when you leave it and it goes blank the other is what happens when you upload once it has gone blank and as you can see it displays the current images just not the previous ones

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Nandit 1,568 Moderator on at

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Hi BV-10090510-0,

Can you try introducing a Refersh button on the screen. Just to refresh the DataSource that holds the images to see if they start showing up after clicking the refresh button?

OnSelect:
Refresh(DataSource)

If its gets you closer to the right behaviour, you can try to include this on the Submit button of the images.

Hope it helps.

Kind regards,

Nandit

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CA1105 545 Super User 2025 Season 2 on at

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There might be a issue with collection/datasource. Could you please try to Refresh your gallery by adding timer control and on timerstart refersh your datasource or collection which you are using to bind the gallery.

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Ammar Zaied 97 on at

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Hi,

Possible Causes:

1. Test the Offline Functionality

Check the offline storage settings in Power Apps. Try increasing the cache size or optimizing how images are stored locally.

In Power Apps Studio, you can adjust offline behavior using the SaveData() and LoadData() functions to explicitly manage offline storage. If the images are large, they might need to be compressed before saving to the offline cache.

2. Investigate the Image Storage

If the images are stored in SharePoint or Azure Blob Storage, check how long the image URLs (or SAS tokens) are valid.

For Azure Blob Storage, SAS tokens might expire after a certain period (like 10 minutes). You can adjust the SAS token expiration in the backend.

For SharePoint, verify if the direct links to the images are expiring after a period.

3. Test on Multiple Devices

Test the app on multiple mobile devices to determine if the issue is isolated to specific devices or OS versions.

Try clearing the Power Apps cache on the mobile device and reinstalling the app to see if that resolves the issue.

4. Check for Recent Power Apps Updates

Review the Power Apps release notes or forums to see if any recent updates have affected how images are handled on mobile devices. This could indicate a broader issue or a bug introduced in a recent update.

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