our webhost is our own server which we have had for a few years now without any issues at all, only issue have been with wordpress seeming to be extremely memory hungry
if you are meaning edit image within the media library nope this does not work either blank screen and then wordpress decides there is no image data.
there is defo an issue in wordpress not sure what but there is, i would say memory
our server is heavily kitted out and runs several sites one being a heavy traffic site full of videos and images, so there is no issue with php within our server or any shortage of memory