Byrdie issue

[ggarms]

Got the comp itch today so I saw beans byrdie board and decided to build it. She fired up fine and the effect is working, however when letting notes ring I have one of two problems depending on the trim pot position. At half the sweep, after 3 or 4 seconds I get a strange tremolo like pulse, at the other end the notes fizzle out quickly.  The only substitution was a 2k trimmer instead of a 1k. Any thoughts of the culprit? I have yet to swap ics; I'm using a mojo metal can 3080, and I'll have to make a daughter board if I want to test a 13700 in there. Thanks in advance! I haven't troubleshot a comp before so I'm hoping to  grab some knowledge on the way

[stevewire]

Hey ggarms,
This may not help much, I switched over to the metal can also and I haven't had the problem you describe.

[ggarms]

It's the strangest thing! I tried a different IC from my keeley and ruled that out. I'm not sure what could be causing the problem.....