[BUG] Live preview recalculate material every time on node adding even if previewing single node

Didn’t happend before on 4.18 and earlier. Steps to reproduce:

  1. Create any material
  2. Turn on Live Preview
  3. Create simple DebugTimeSine and preview node
  4. 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.