White interface while Loading Waves Plugins And Some Other Plugins.after Upgrading Cb11 To 12

Hi
Just Upgraded My Cubase 11 To cubase 12 Some Days Back . Suddenly My Plugins showing Black White Interface And Hangs Cubase Software . I have to End Task IN Windows And Have Start Cubase Again. How To Fix This Problem Any Idea ?
NVIDIA GeForce RTX 2080 with Max-Q Design

Windows 11
Alienwar m17
Cubase 12
Windows up to date
i9 processor with NVIDIA GeForce RTX 2080 with Max-Q Design