Custom node with SceneTextureLookup function doesn't support on Mobile anymore

Reproduce Steps:

• Create a Postprocess material; 
• Copy and paste the text attached into the material, Connect output of Custom node to Emissive input of the Material; Compile and save
• Assign the material to a Postprocess volume and get it work in viewport
• See it works as expected in SM5 preview mode;
• Enable Mobile preview mode, it stop working

It does work on Mobile Preview mode in 4.19 and 4.18

[Link Removed]

How does TextureRenderTarget2D get TArray<uint8> type data?

Why does the REMOVE method of map container remove elements have memory leaks?

Do I need to call Destory method to remove components from Actor when Destory method to remove Actor?

Where can I download the source address of the deployment cotum service associated with the PixelStream plugin?

How to delete some elements correctly when deleting an array loop?

UMG RichText not appear image when packaged

What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?

为什么我的电脑无法安装ue，错误代码一直是IS-IN-BV05,该如何解决

trying to launch uefn and it is crashing and saying pakchunk4522 is courrupt, anyone have the fix for this?

How to convert the datasmith scene file to BluePrint. Create animations in BluePrint.