Complex sentence: Majalengka Regency has turned down the idea and indicated that it should stay part of West Java, but does not preclude Cirebon Regency and other regencies from continuing the idea.
Split into simpler sentences: Majalengka Regency has turned down the idea and indicated that it would prefer to stay part of West Java. However, the lack of support from the Majalengka area does not preclude Cirebon regency and other regencies from continuing to promote the idea.