3rd party Plugins changing size

CPU: Intel Core i9-10900K @2.60GHz
Graphic Card 1: Intel UHD Graphics (1GB)
Memory: 32GB
Screen Resolution: 2560* 1440

If im using a 3rd party vst plugin and closing it and than reopen it, its never saves me the size of the window, its always getting smaller and smaller each time im doing it, so frustrating

Does anyone familiar with that ?