to lose both of two possibilities by hesitating between them or trying for both: His music falls between two stools - too mainstream for some people and not original enough for others.
az: "iki işin dalınca qaçıb ikisndən də əli çıxmaq», «Əli aşından da olmaq, Vəli aşında da»
ru: "оказаться между двух стульев", попасть впросак