SPD 30 midi trigger strange midi latency issue

Hi all

I'm using an Roland SPD 30 as a midi trigger to trigger drum samples in Drum Machine Designer.

I'm in Low Latency mode and monitor without any latency when I record.

However, the midi information recorded into the track is delayed between a 1/16th and an 1/8th note.

When I play the track back, it is delayed. The midi notes are clearly not in sync

This only happens on existing sessions, if I start a session from an empty template, I have no issues.

My buffer is at 128.

I turned quantize off, I tried multiple sound libraries, as well as different drum plug-ins, all the same exact result.

Turned Low Latency on and off, restarted, nothing changes. I have an Arturia keyboard, and this does not have the issue, just the SPD 30.

The SPD-30 is connected via USB to my 2017 iMac, running Catalina, Logic 10.5. UA Apollo duo, 64megs of ram.

Hers a bit of an update that is even a little more confusing:

I opened one of the projects I was giving me this problem.

I froze every channel and had no sync problems.

So then bit by bit I unfroze the tracks, reloaded the plug-ins, until I was back at the state I experienced these sync issues.

And didn't have that sync issue.

I think I found a fix.

I had this latency problem ONLY in Drum Machine Designer. Not UltraBeat or other keyboard instruments.

The fix that's working so far is to Turn Plug-In Latency Compensation off, and turn off Low Latency Mode

Preferences > Audio > General tab