Ah yea, that was defiantly the problem. I had small fade-ins but I guess they weren't enough. Cheers!

Edit: Ugh wait no its doing it still. It's weird, when I put the sample in a specific place on the arrangement it pops.

When you zoom in on your waveform, does the start of the sample start above the zero crossings mark? You are always going to get pops if it starts mid way. Fades will take care of this, or you need to edit it to where the waveform comes to the zero crossings naturally.

It happens when you cut audio in random places, rather than on the zero crossing.

If you cut on zc, you usually won't need to fade in and out