Usually it is the other way around.
Vectorial engine usually works when the Open GL (Hardware Acceleration) engine doesn't,.
But as Karl mentioned, it would be could to know your machine specs and operating system.
And make sure video drivers and Archicad version is up to date.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10