The MWI doesn't really solve the measurement problem - it still doesn't explain in any way why two different detectors that according to the Scrodinger equation

The MWI doesn't really solve the measurement problem - it still doesn't explain in any way why two different detectors that according to the Scrodinger equation should both see the same amplitude for a particular particle at their location will never both detect the particle - only one of them will. However, we also know that the original particle can actually interact with two different particles at the two different locations. MWI can't actually explain this well-confirmed observation (and no, decoherence doesn't explain it - it just explains why macroscopic systems don't exhibit interference with themselves or with other macroscopic systems). At a more relevant practical level, there is no theory that can predict what value a quantum measurement will have beyond probabilities. This is an easily observable fact - and finding the way to perfectly predict the value of a quantum measurement would probably make QM inconsistent with special relativity for example.