Steps to Reproduce
- Launch UEFN.
- Create or load a project.
- Create a Material Blueprint.
- Create a Material Parameter Collections blueprint.
- Open the Material Blueprint.
- Insert the Material Parameter Collections blueprint in the newly created Material.
- Save the changes.
- In the Content Browser, right click the created material.
- Select "Asset Actions > Migrate..."
- Migrate the Material to another project.
- Load project to which the Material has been migrated.
- Double click the Material.
ACTUAL RESULT
UEFN crashes.
EXPECTED RESULT
The material editor opens.
Notes:
- The issue also occurs when right-clicking the material or attempting to apply the material to an asset.
POST LINK: https://forums.unrealengine.com/t/editor-crashes-due-to-a-material-that-contains-mpcs-migrated-from-another-project/1826566
POST BODY:
- Please select what you are reporting on:
Unreal Editor for Fortnite
- What Type of Bug are you experiencing?
Assets
- Summary
I have migrated a material that contains a Material Parameter Collections from another UEFN project.
Some behavior with that material caused the editor to crash.
- Steps to Reproduce
1. Select a material containing a MPCs, MPCs, textures, etc. and migrate them to another project. Assets Actions > Migrate...
2. Open the project you migrated to. (My editor still crashed at this point)
3. My editor crashed for all of the following actions.
- Right-clicking or double-clicking on that material in the content browser
- Selecting that material in the content browser and pressing the delete key.
- Pressing the submit button to check in the project.
- Expected Result
We can migrate materials containing MPCs and open them successfully.
The migration should not interfere with the check-in of the project.
- Observed Result
See "3. " in Steps to Reproduce
- Additional Notes
I could not delete the material in question, but revert option of URC enabled me to remove it. Then I check-in of the project.
CREATED AT: 04/28/2024 11:36 AM EDT
UPDATED AT: 04/28/2024 11:37 AM EDT