You do not ned to put the binaries on the cvs. Thats not how ue is meant to be used.
Unless you understand why you do it.
If you cant build them from source when the engine tries to rebuild it you have a different issue.
Sometimes if you use an installed build you might not have the tools to compile the source installed and then fail to compile.
But its not a problem with the engine (unless you have the very bad luck to encounter an actual bug, but it does not sounhs like it).