I decided today to upgrade from 4.18.3 to 4.19.2 my Unreal Engine.
When I executed my project, a brick border become visible all the time. Investigating this weird thing, have noticed that is Chamaleon FX related with it. So If I active or enable any Effect, the brick border appears. If I disable it, it dissapears.
The weird brick border thing is this:
https://answers.unrealengine.com/sto…8+14.44.54.png
And more people had problems like this one in Unreal Forum which contains useful stuff:
https://answers.unrealengine.com/que…update-49.html
https://answers.unrealengine.com/que…fter-upgr.html