Error when uploading a file, won't accept file extension

We have a form which has been working until recently, but now we get the attached error when trying to upload a file. But the upload button just below it (there are two) works!

To clarify, may we know what type of file are you trying to upload? Note that these are the only allowed file types that can be uploaded to your form:

As you can see, the one in the bottom has more file types that were allowed to accept than the field in question. I suggest copying the File Types of the other upload field and paste it to the field you're having issues with.

I was trying to upload png, jpg and jpeg. I had already copied part of the file extensions to no avail. I copied everything just now and it works.

This was working on the 23.12 as someone uploaded a photo then but it stopped working. It is fixed now. I just deleted the extensions I don't want to have there.

Thanks for the help.

Sigurdur

It's good to know that it's all sorted now and working properly as intended.

Let us know if you need further assistance.