Didn’t happend before on 4.18 and earlier. Steps to reproduce:
Create any material
Turn on Live Preview
Create simple DebugTimeSine and preview node
Try to add different nodes to the material
Every time when creating new node unreal trying to recalculate material. It’s really hard to work with materials when unreal trying to recalculate it every time.
We’ve recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.