I installed Gnome on Debian stretch stable, with kernel version 4.18 from stretch-backports, and after logging in, the animations usually present on Gnome do not work, i.e. apps sliding into the applications menu, the blur on the bar at the top of the screen. However, if I go to a tty, then type startx, the Gnome desktop environment starts and the animations works. I have looked around, but haven't found any answers as to why this is happening, or how it can be fixed. Does anyone know how I can solve this issue?
I am starting Gnome via the graphics login screen, GDM, and am using an X11 session. I'm using a Core i5-8400 with Intel UHD Graphics 630.
loginctlcommand