I have tried to upload image/s thru a post or page, it gives me an error (An error occurred in the upload. Please try again) (See screenshot).
Images can be found in the media library.
I have also try to insert images from Media library. But on post/page is not displayed.
I can upload image thru [Media] -> [Add New] whiteout any error message.
I haven't updated any plugin, theme or wordpress