So I ran into this before and talked to our UI team about what is happening. You can run the game and have an “uncompiled” blueprint without any issues, because the blueprint was actually compiled after all of the changes were made. The “uncompiled” issue arises because compiling one changes a variable in itself that the other is looking at, so the observing blueprint thinks that it has also changed.
The solution is to just compile them both once, let one be “uncompiled” and use that blueprint anyway. It won’t hurt anything, it’s just percieving itself as being changed and therefor not compiled (even though it is). Let me know if that does not help or if you have any questions.