UI with ETC1 material pick alpha of the whole atlas (in editor)

Unity Engine
,
1

As stated in the title, UI when a special ETC material is selected and ETC1 sprite attached to it (packed into an ETC1 atlas) puts whole alpha of the atlas on itself in the editor, which makes it difficult to edit UI, the problem is solved temporary in play mode, all the sprites put the correct alpha on themself, but only in play mode, if you quit play mode, everything goes back to hell.

ETC material is taken from the default Unity materials, nothing adjusted.

The build target platform is set to Android, so i guess it has something to do with that.

Switching back to windows standalone for editing is not an option because of the project weight, it is UI heavy and a lot of sprites will be repacked on switching, which takes forever to do even on a fast machine.

Following screenshots display the edit mode (on the left) and play mode (on the right).

Anyone had similar problem before? I’ve searched the web and forum, but had no luck, maybe i’m using wrong keywords

3240616--249122--glitched.jpg
3240616--249122--glitched.jpg889×961 103 KB
3240616--249123--not.jpg
3240616--249123--not.jpg867×939 79.1 KB

It is not really a problem for me as i’m a dev, but imagine this for a designer…

2

Bump, problem still persists…

3

If someone is having the same problem, a temporary workaround would be to set designer’s Platform to Standalone and remove any material from UI, then interface would appear normally.

Then change the build pipeline to check any UI sprites if they use ETC1 compression and change their material to UI_ETC1, after you check and change the material, build to Andriod target, then revert any UI_ETC1 material to null and save changes, so that designer would still have a nice looking UI.