Some ymap Objects despawn when im too far away

I’m sorry if I put this in the wrong category.

I have the Problem that I created a map (a racetrack) with Menyoo. (converted to a ymap)
But when I load it on the Server some objects disappear when I move to far away from the center of the object.
In Singleplayer it works perfect.

The objects are: ch_prop_track_pit_stop_01 and stt_prop_track_straight_lm_bar

Some objects like “ch_prop_track_pit_garage_01a” load from a longer distance.

I just made the pitstop and want to look if it work but it didn’t.

Is it a FiveM problem? Can it be fixed?