I'd take a guess and say that in your Work Environment you have the pet palette set to "jump to a preferred location" and that that location is off the screen.
Try setting it to "Follow cursor".
Another option is to keep your left mose button pressed while you move to the pet palette to choose what you want.
While the button is held it won't jump.
I haven't had trouble with the pet palette in 14 but 15 does have some problems.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11