Steps to reproduce the issue

go to system/templates:Templates(site) with shown "cassiopeia-details an files"
choose button "options"
select button "close" whitout doing any changes

Expected result

should return to system/templates:templates(site) with cassiopeia shown

Actual result

returns to system/templates:styles(site)

System information (as much as possible)

actual Joomla 4.0.0 Beta6 with sample Blog data installed an languages english(en-GB) and germna(de-DE)

Additional comments

when selecting button "save&close" from Templates:templates(site) and button "options"
returns correctly to templates:templates(site)