Why is a ui material showing a white square randomly ??? -> This is Epics own material!!!

Summary

For some reason the ui material that’s attached to a material_block randomly shows as a white square instead of the actual material

This is Epic own material from the UI Template that was showcased in the recent yt talk with the UI Director

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

UI/Tools

Steps to Reproduce

I have no idea as sometimes it shows sometimes it doesnt and shows a white square

Expected Result

It should always work and show the material

Observed Result

Its broken

Platform(s)

pc

Additional Notes

I will show some snips

Showing the issue:

Working:

I don’t know what the issue is but literally when its white square i end game start game and after a few attempts it works again ?

My verse

This is what its doing

Mine is a material and is directly added via asset reflection and not editable.

Bump

FORT-936409 has been created and its status is ‘Unconfirmed’. This is now in a queue to be reproduced and confirmed.

I found that if you create a stack_box and have at least 1 other element in it with your material_block then it will show consistently if you don’t call SetImage on it. If you draw it straight to the screen it will not work.

Calling SetImage at any point in time can cause the white block, To work around this I save materials I need to update later and perform my updates to that material vs recreating it. This works however if you are in a scenario where you must change to a different material then you are still stuck.