hi, What is your Damping factor and CFL timestep ?, if you set these correctly and follow the guide as in and what are you trying to model in here?
https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v231/en/exd_ag/ds_exd_settings_types.html?q=TYPE
it should be able to run it with no pre-termination, cheers, RamĀ