I searched for a similar thread and found none, sorry if this has been covered.
I have a good size map with a lot of BP that has been working perfectly in 4.17 and 4.18 a long time. No errors, no warnings, squeaky clean. When I open it in 4.19.0, same thing no errors or warnings, fully functional, packages to an EXE that performs perfectly like it did with 4.18. In 4.18 I’m getting a solid 70-80fps in the editor viewport.
However in 4.19 the entire editor hangs/freezes momentarily about once every second. The viewport, interface graphics, the log window - everything, like it’s a graphics driver(just a theory). It is subtle at first, but the longer the editor stays open the worse it gets and the “pauses” get longer and longer. The FPS still shows about 70 but of course freezes with the screen and recalculates every after every pause again. It happens during preview play as well just as bad, and makes player capsules lag during the pause and create false collisions, etc.
Basically the editor is unusable. It does not stutter with say a single UE4_Mannequin in a blank environment, but that is running at a pegged 120fps because of virtually no/textures so it points to a graphics again. I have a fast 4ghz+ PC and 980GTX running the latest drivers, and the last three drivers have had the same stuttering in 4.19.0. My hardware has never been an.
Once again, runs smoothly/flawlessly in 4.17 and 4.18 and opens and “functions” flawlessly in 4.19.0 - except the stuttering screen freezes.
Is anyone else seeing this crippling stuttering?
I got once an ocasion where I have changed a material (ocean one) and the whole screen was like you described. The only solution was to close the editor and open again. After that I didn’t see it happen again, but that left me really worried. I might get in touch at that same map and material again and see if it is consistently reproduceable or not. Seems like not worst than yours, but definitely turns the editor unuseable as it gets worst after some time.