Its well-known that Einstein was uncomfortable about the anti-realist and non-deterministic status of Quantum Mechanics, declaring that
God does not play dice
However, a realist and deterministic interpretation of Quantum Mechanics was found by de Broglie in 1927, and then rediscovered by Bohm in 1952. This is generally called de Broglie-Bohm or just Bohmian Mechanics.
What was Einsteins response to this?