Idiom "Fall between two stools" means _____?

Trying to sit on one of the stools

Difficult position

Lost the balance

To come between two alternatives, and so fail to fulfill either of them

The idiom "fall between two stools" means to come between two alternatives, and so fail to fulfill either of them.

It describes a situation where someone fails to achieve success because they cannot decide between two options or do not commit fully to either.