I notice when sound locking sometimes it effects the sound of the following sounds. For example take a 4/4 kick and sound lock a bass time type sound on the step right before the kick and it will affect the attack of the kick. Put it two steps before and it won’t impact the sound of the kick. Some times I will dig around for a sound that won’t impact the next sound but I haven’t been able to isolate what is usually causing the problem. I have tried even short sounds with no release and short note length value. I think it has something to do with the oscillators not having time to reset but not too sure. Anyone else have the same experience and know what causes it / how to avoid it?
Sounds like it could be the envelopes. Envelope shapes without the black dot at the start does not restart from zero, but from the value it currently has. Does it still happen if your envelope shapes has black dots?
Have you checked the influence of your BPM settings? Does it also happen at lower BPMs?
If the kick is a resonant filter type then this is entirely normal
Ought to be quite a few old threads on this one that may have hints to mitigate
If this track is a mono/single voice track a sound locked patch could have a voice stealing issue depending on what is going with the other tracks. Even with sound locks the A4 only has four simultaneous voices.
Thanks all. I will make sure the envelopes have black dots and see if the kick is using a resonant filter (probably is from memory). I would think the resonant filter would impact what came after the kick, not the attack of the kick itself.
It isn’t voice steeling, I am only using 1 track.
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ive noticed this issue as well, but i just assumed its the nature of the technology
seems to happen most often when you try to sound lock into a new sound while the track sound is still playing … but ive also noticed it happen even when they are separated by a good deal of silence
figured it had to do with different parameters changing modes, timing, etc. in a way that is too drastic for the hardware to resolve
Most definitely this is the issue, discussed a lot in early A4 days
The filter needs exciting to resonate, once up and running it’s fine
Place that sound solely on one track and arrange some trigs, the first after play will not sound right, but it will subsequently - this is confirmed normal - it’s maybe possible to mitigate with crafty extra sequencing to get the filter ‘fed’ in advance
How much resonance does there need to be in order to be considered a resonant filter? The kick I have is at about 43 which doesn’t seem that high.
All my sounds had dotted envelopes so that wasn’t it. 
Also not sure if it is the filter creating the issue, may investigate a bit more on that.
From a practical perspective for the project I am working on I found I could put the hat and kick on the same track instead of the bass and kick and I don’t run into the sound lock issue changing the kick sound, but I would like to understand the interplay a bit more so I’ll keep investigating.
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