It’s pretty quiet here, I think I did find something unusual, but not specifically for 1.31, it was there in previous OS versions.
I noticed something strange going on in projects where I use sounds with the LP4 filter, some notes wouldn’t sound the same as I ‘designed’ them, this is when it occurs:
When a voice (one of the 8 dots in the voice menu) is first used by a sound (any sound), then used by a sound with the LP4 filter, the first note of that LP4-filtered sound will sound different than following notes of the same sound. (ok, hope you can still follow …)
To reproduce it, I restricted a track to a single voice. In the image below you can see 8 notes, the first 4 are from a sound with an LP2 filter, on the last 4 notes I applied an LP4 filter using parameter locks. The latter 4 notes should sound identical to each other, because I copied them. The first one however clearly sounded louder.
Depending on the exact filter settings, this first note is sometimes louder, sometimes quieter than the following notes, but in most cases it clearly sounds different, and specifically at the beginning of the note…
(I got similar results when a voice is first used by one track, then by another track with an LP4-filtered sound)