Replace Mesh Error
 

Why when i try to replace mesh on a case it gives me this error?

Node 999999: Process 19676: Received signal SIGSEGV.

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MPI Application rank 0 exited before MPI_Finalize() with status 2
The fl process could not be started.

Check mesh
 

Either the mesh has errors or the machine does not have enough RAM available

To check mesh, first load it in Fluent Meshing or Fluent stand-alone, as a fresh case. Then, run a check mesh. If it passes the test, then most likely the available memory is lesser than required. If mesh is zipped, i.e., .msh.gz, then unzip it before loading. This would require lesser RAM.