To cut to the chase:
Apply most any Material to a Landscape in 4.23, everything looks normal and fine in the Editor. No errors or warnings or visible issues.
After Packaging with no warnings or errors, open the exe and the Material is missing and the Landscape has the default “nothing” checkerboard.
I noticed this after opening a 4.22 Project in 4.23. The Landscape was using the “Ground_Grass” Material from the old Starter Content, similar in complexity to the “Brick” or “Cobblestone” etc. Materials. No errors or warnings, rebuilt objects/lighting etc., and after Packaging the exe Landscape was the empty checkerboard. I tried many other Materials simple and complex, and same result.
Verified all this in 4.23 with a new Project and the default “Third Person” template assets.
Add a Landscape, raise it above the current floor so it is visible (moved the spawn point up as well for good measure). Apply the included simple “Cube” Material already on the floor and all static meshes. Looks fine in Editor, no errors/warnings. After Packaging the exe Landscape is once again blank checkerboard.
Made a new Material. Added the UE4 Logo tex to the Base Color. Applied to Landscape, looks like a sea of tiled UE4 logos. Saved, rebuilt lighting, all is well. No errors, warnings. Packaged again, no errors or warnings - And exe Landscape is once again blank checkerboard.
The ONLY Material I’ve gotten to appear after Packaging is the “UE4Man_Body” that is on the Mannequin. I have no idea what makes it special in 4.23 versus all other Materials. It’s all really over my head, I’m just doing due diligence detective work.
Anyone else seen this Landscape Material/Packaging problem? Please let me know ASAP and/or try it yourself.
I want to report this as a bug ASAP, assuming there isn’t a new “checkbox” somewhere you need to set so Landscapes will Package correctly, and that “Default” settings don’t work anymore for some reason on purpose in 4.23.