Problem with union resizing

I’m sorry if I worded this incorrectly but what’s happening is that I made a union a cylinder and then added some negative parts and then streched it out. After testing the game I noticed that in studio it looks okay but in the roblox player it doesn’t look good. This is just one of the examples. Other things have been also resized like this.

This is how it shoud look, in Studio:

This is how it looks in the player.

You probably forgot to anchor your negative parts before unioning.

Everything was/is anchored before and after unionizing.