Some class doesn't generate spellcasting class. After closing the tab and reopen with Ctrl+Shift+T, spellcasting class is wrong

[lts20050703]

Using the logical version, when the page roll some classes (for example Paladin, Ranger, ...), it doesn't generate the spellcasting class. When I accidentally close it and then Ctrl+Shift+T to re-open it, it generated the spellcasting class, but the spellcasting class is wrong