All Objects suddenly delete randomly.

[CCER]

I spent quite a long time creating numerous planets, stars and a variety of other objects to create an extensive solar system. However, I press play and after a few seconds my objects randomly delete. Sometimes it is only the larger objects, leaving random tiny objects zooming off into space. Other times after a few seconds everything deletes. I don't know what's going on. Please help.

[mold999]

It may be, if you are zoomed out very far, that your objects are hitting the "killer planes" and getting destroyed.

In case you don't know, the "killer planes" are planes that start at about 1 km from the center of the scene. There are four of them, on each side of the scene. You can delete them if you wish.

(This is not necessarily the issue, but it is the best idea I could come up with within the time span I had)

[Kilinich]

I spent quite a long time creating numerous planets, stars and a variety of other objects to create an extensive solar system. However, I press play and after a few seconds my objects randomly delete. Sometimes it is only the larger objects, leaving random tiny objects zooming off into space. Other times after a few seconds everything deletes. I don't know what's going on. Please help.

scene please