Upload button that allows multiple file upload

I was building an upload form, yesterday and I had a widget that enabled the user to upload multiple items at once.  I came back today to continue working on it, and it was not acting properly, so I deleted it and started over.  But now, the upload widget will only allow one image at a time?

I do like the feature of restricting what file types a user can upload, eg. .zip, .jpeg, .jpg etc, and I was wondering if there is a way to customize/restrict those file types even more?

Did you added File Upload field to your form? By default File upload field will accept only one file. To allow multiple files, you need to turn ON Allow Multiple option inside of Form builder.

I have inspected form that you last edited and Allow Multiple option is enabled on that form. When I tested your form I was able to upload multiple files.

https://www.jotform.com/61455912546964 

More about allowed file extensions for file upload field and how to change the upload size limit, you can find inside of this guides:

https://www.jotform.com/help/29-Which-file-types-are-allowed-for-the-upload-field 

https://www.jotform.com/help/33-Changing-the-Upload-Size-Limit 

Were you able to resolve your issue? If you are working on some other form, please provide us ID of that form. Also you mentioned that file upload field was not acting properly. What exactly was not working properly? Can you please provide us more details about your issue?

Looking forward to your reply.