If anyone want to try the asset on 4.22 previews, follow the steps bellow:
a) backup your project
b) change the engine association field inside your project file (.uproject extension at file name) to 4.22
c) inside the folder Config, edit the file DefaultEngine.ini and at the field EditorStartupMap make it equal to None
d) open the project
e) it should open without errors, don’t open any map yet
f) close your project
g) send an e-mail with your Marketplace receipt and ask me for an updated M_CloudscapeVk material to try it on 4.22
h) you will receive a M_CloudscapeVk.uasset file to replace the one inside the folder \CloudscapeSeasons\Materials
i) replace the file above with yours
j) open the project and open the map you have with Cloudscape Seasons on it
Cheers!