Hello,
We are facing the strange issue while uploading and inserting images into the post only when Advanced Custom Fields PRO plugin is activated.
Whenever plugin is active it does not allow us to upload images and return HTTP Error.
Some time we did not get any error during the image upload but when we insert the same image into the post its add 1px width and 1px height as image tag attributes.
After deactivating Advanced Custom Fields PRO plugin image upload and image inserting process into the post work fine.
Please tell us if you need any other information to investigate this issue.
Waiting for you instant response.
Thanks
After doing a quick test I’m not seeing any issues with image uploads while ACF is active. Have you tried deactivating other plugins to see if there is a conflict? Have you tried turning on error logging in WP and checking the error log to see if there are any PHP errors? Are you seeing any JavaScript errors during the upload?