Replicate the conflict is simple, you need woocommerce, WPUF and myCRED. The myCRED add-on that causes the conflict is “Sell content” so it's enough to activate only that add-on and leave other disactivate (MyCRED/Add-ons/ “Sell-content”.)
If you use a form to upload woocommerce products, using a “image upload” object,
the operation of uploading a product and image and give it an image title, is successful (the first time) , but after the first time, when you click the UPDATE button, the titles of images disappear (are deleted from the database).
This happen only if “Sell content” is activated. The line that causes that is: