UE5 Nanite Mesh Problem

the left side tree i use ue5 nanite . then its become ugley and matrials also not support and right side tree is a static mesh . So tell fast how to fix this send me picher or video how to fix this ?

Same problem. I tried to convert a project in UE5, but all the foliage I have put in the landscape are untextured, even if the Material is attached correctly.