Any solution to automated converter assets from Unreal Engine 4.26 to Unreal Engine 4.21 plugin?
Never heard of one
never hear of anyone using a version older that 4.26
I guess you have your reasons
Nope, here’s some tips that might help:
1 If you have your classes are well-encapsulated, move systems over in separate passes and debug them one at a time if possible.
Depending how your project is put together, if everything is referencing everything else all over the place, then you might want to just go all at once.
2) Yes I literally mean move them over. Copy the files to the content browser of the other project, and make sure any Native base classes are already in place and any compile errors fixed.
Personally I did not find the Migrate tool useful when going backwards, but I can’t remember why tbh.
3) When you open the editor, some of the files will just work. Others won’t even show up. If they don’t show up, you’ll have to re-create the classes, functions, etc.
4) As you’re recreating things, open the 4.26 project in another window so you can copy-paste your blueprint nodes into the 4.21 project. Variables will show up as gray if they don’t exist in the target class. BEFORE you compile, right click on them and choose “create variable” if that option exists (idk if it was there in 4.21) Otherrwise, if you make a variable of the same name and type before compiling, it sometimes but not always will recognize that the variables are the same when you compile, and you won’t have to replace those variable nodes.
5) If you’re re-creating with UMG, place everything with correct names and widget types in the widget tree before working on the BP logic. This will make copy-pasting nodes succeed a lot more often.
Regardless, you’ll have a lot of red blueprint connections you have to re-pin together, nodes to refresh/replace, blueprints to recompile, and some things you’ll have to outright re-create function by function. Good luck!
So also, if you can just upgrade the 4.21 project to 4.26, that will probably work a lot better if you’re moving a lot of assets.