Hi,
haven't actually sampled or loaded individual samples like drums, basses etc
but I have loaded some audio drum loops which I've sliced & created pads from.
I've had no problems .

As Donny mentioned a number of the members that have had problems appear to be constantly loading other members user files including stuff from earlier model keyboards like the pa1x.
When the PA's load & save as a .set file, the set can include global settings, samples all sorts of stuff.
They probably don't have a choice as a lot of the styles they're sharing seem to be oriental styles which include drumkits & samples.
If one doesn't understand the system & you start loading other peoples stuff, they may be getting in a bit of a mess if they load stuff incorrectly..
When I share I style, I only save the style itself, & warn people to load the style as an individual style , not as a set.

best wishes
Rikki