Cannot upload image/videos to dynamic items suddenly

Since the last few days, image/videos cannot be upload to dynamic items
It works on preview mode, but cannot work on live websites (across all websites we created)

Background:
We have created dashboard for clients to upload their image/ videos at dynamic items (can add courses dynamically and upload images and videos to each of them)

Problem:
Upload images/ video to those dynamic items suddenly does not work on live websites (it works before)

Now it just work on preview mode. At preview mode, can upload image/ video on dynamic items

But on live websites dashboard it does not upload (dashboard at backend for clients to upload)

We used the “submit” by connecting the repeater


Also tried using code

$item("#btnpictureSave").onClick((event) => {
    $item('#courseInformation').save();
    });

But both ways just work on preview mode, but does not work on live websites
Also me and my colleague both tried on our own and on all websites we created, and are having the same problem🤔

To study further, the “upload” button works, but the “save” button does not work


After click save, it uploads the image to “visitor uploads”


But does not saves to dataset

Please kindly advice. Thank you!
Website: Sky art (https://manage.wix.com/dashboard/327664f8-a80a-41d0-966a-69ccaf9b54a4/home/)
Page: Course Category Pages (Dynamic) - first dynamic page under this category

To illustrate the problem, I have created a completely new website without any code. Just connect the “upload”, “save” and an image to the repeater.
https://goodteacherlive.wixsite.com/my-site

I have set dataset “Read& write” and all permissions of collection to “anyone”, and still cannot upload any image to the repeater items in live mode (only can upload in preview mode).
You can try it out.
Website name: my site

I suspect there is a bug with the “save” function on repeater items?

Look forward to any solutions. Thank you

Forget my previous comment…

I did some checking and it seems that a recent release version is affecting the Upload button in a Repeater.

I am reporting this issue to QA for evaluation.

@yisrael-wix Sure, look forward to the update. As we have multiple clients using this function to upload their images and videos. Many thanks!