Materials (Plugin Content) are not displayed in another version of the engine

Development Rendering
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1

I created materials and textures in 4.26 in the Plugin Content Folder.
When I move the plugin to 4.25 these materials are not displayed. How to solve this problem ?
I’ve tried direct copy.
Tried “Migrate” in the RMB menu. But there is no result.

UPD: I found out the reason. You cannot upgrade to a down version.

2

I found out the reason. You cannot upgrade to a down version.