@zaynhaikal What is the language setting on the computer? Try making names with English characters only.How long are the names? Try making short names.

yeah you right. the named is quite long, but How do i change the name? because it seems like the name is auto generated from ansys acp. i cant find anything that helps me in editing the named either in ansys acp and steady state thermal. i have upload the picture for your reference.n