Extreme compilation time for landscape material

Summary

landscape material compilation time has jumped from seconds to 15 minutes

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Memory Calculation

Steps to Reproduce

This is probably hard to reproduce. I reated a custom landscape material about 2 years ago. Compilation time was always a few seconds. It works on mobile, everything was great. Frame rate is also good (above 40 fps).
I just revisited it to make a change, and it is virtually impossible to edit.
Compilation time is now 15 minutes for each change I make.

I noticed that with one of the updates this year materials compiled noticeably slower, but I did noy think too much of it, it still seemed reasonable. But the landscape material is a bad situation. I am putting this out here hoping someone has an idea, and to see if other folks have similar issues.

Expected Result

This increase in compilation time is dramatic and should not occur.

Observed Result

Landscape materials almost freezes with every change int he material graph.

Platform(s)

PC; Windows 11