The issue with the “compatible track” indicator (or filter) when p-locking sounds from the sound pool is still there (Syntakt 1.00 : bug reports - #89 by bram2000).
Basically there’s an exclamation point after sounds that cannot be loaded on the current track, but it is often obscured by the name of the sound. Ideally this list would just be filtered such that you could only select a sound that is compatible with the current track.