Thank you so much for your response. 

Yes, i am using newer remeshing script in FENSAP-ICE v20.1 version, may be that would be causing the issue. While, i have tried the latest versions, even v23r1. Everything works well in the latest vesrions, but Fluent remeshing is not launching in the latest versions of FENSAP-ICE. Once, Fluent remeshig step reaches, all of the assigned processors are unloaded, and simulations don't show any further progress.