Save fields causes failure

Solving a model in AEDT works only if the Save Field option was turned off. If it was set to ON, then it does the adaptive meshing, then crashes

Open the model in AEDT, and keep it open, and delete all the other files and directories which belong to the project. Sometimes you may need to enter subdirectories and delete the files. Go back to AEDT, save the project, and run.