According to the help documentation, Cyclic Region and Pre-Meshed Cyclic Region are supported for steady-state thermal analyses. However, in the post-processing stage, only the current individual sector's results can be viewed — the full model results are not available.
If viewing the entire model’s results in post-processing is required, the full model must be built in the pre-processing stage, instead of using cyclic symmetry boundary conditions.
https://ansyshelp.ansys.com/public/account/secured?returnurl=//Views/Secured/corp/v251/en/wb_sim/ds_cyclic_sym_considerations.html
