Level 1 (39 points)

Logic Pro 13: MIDI drum loops not sounding and bounced audio distorted

Paul Oldewurtel · 2026-11-09T12:32:00+00:00

I just upgraded to LP13 and I have two new issues: A common thing for me to do is to grab a drum loop that is midi and transform it - I will try the same loop with different drum kits, change up the effects, etc. But suddenly I can't do this. If I find a loop and drag it to an instrument track and then try to find a different drum kit, nothing sounds. I hear the brief snippet LP plays when I click on a kit name in the list, but my loop stops playing anything. Nothing triggers. My template has a drum loop already selected in it. If I drag a loop into that track, it will pick up the drum kit of that track. But the moment I try to change the drum kit on that track, nothing sounds. Feels like a bug to me. I've never had a problem doing this before. The first thing I recorded after upgrading to LP13 was a simple, quiet piano piece, very short. I liked it and decided to bounce it so I could share w a friend. But when I play it in Music, Messages (I texted it to him), in the car, it's slightly distorted like my settings were way off and the audio is clipping. If anything, I expected the track to be too quiet. I've recorded and bounced lots of stuff without running into this problem. What changed? I upgraded my Logic Pro. I've checked all my volumes. The laptop volume, the track volume, the master track volume. This is really basic and yet I get distorted audio? What's going on?

I just upgraded to LP13 and I have two new issues:

A common thing for me to do is to grab a drum loop that is midi and transform it - I will try the same loop with different drum kits, change up the effects, etc. But suddenly I can't do this. If I find a loop and drag it to an instrument track and then try to find a different drum kit, nothing sounds. I hear the brief snippet LP plays when I click on a kit name in the list, but my loop stops playing anything. Nothing triggers. My template has a drum loop already selected in it. If I drag a loop into that track, it will pick up the drum kit of that track. But the moment I try to change the drum kit on that track, nothing sounds. Feels like a bug to me. I've never had a problem doing this before.

The first thing I recorded after upgrading to LP13 was a simple, quiet piano piece, very short. I liked it and decided to bounce it so I could share w a friend. But when I play it in Music, Messages (I texted it to him), in the car, it's slightly distorted like my settings were way off and the audio is clipping. If anything, I expected the track to be too quiet. I've recorded and bounced lots of stuff without running into this problem. What changed? I upgraded my Logic Pro. I've checked all my volumes. The laptop volume, the track volume, the master track volume. This is really basic and yet I get distorted audio? What's going on?

Posted on Nov 9, 2026 12:32 PM

1 reply

Paul Oldewurtel Author

Level 1 (39 points)

Nov 9, 2026 1:11 PM in response to Paul Oldewurtel

In my "Browser" I have chosen to show Columns since I was having trouble finding the drum kits. If I go to Acoustic Drums, I will see I have two menu options at the top for Kit Pieces and Multi-Channel Kits. But when I go to Electronic Drums, I don't get the same options. I only get the Kit Pieces. But they are named strangely, z01 Kit Pieces and z02 Multi-Channel Kits. I suppose the z helps them to appear at the top of the list. I've never seen this before in Logic. Feels like another bug. I had lots of electronic drum kits to choose from.

And before you suggest it's a mapping issue, I understand that not all drum kits will work interchangeably. That's the fun of changing the drum kit. The snare sound in one might turn into a handclap in another. I'm used to it not always working, but I've never had just complete silence like there was zero overlap for almost everything I choose. If I use the Acoustic Drums kits, it kinda works, but that's not the sound I'm looking for.

I was excited about this merged Browser at first but now I'm struggling with finding what I want. How do I find all of the drum kits? They used to be organized for me and now only some of them are. Where are the Electronic Drums drum kits? Is everything under Electronic Drums essentially a kit? Why won't my midi loop trigger any sounds whenever I choose anything? For the record, I choose the loop called TR-808 Hip Hop Beat 06 and it's really funny when I choose the TR-808 drums and nothing sounds.

Originally posted at discussions.apple.com/thread/256391559