I recently aquired a pair of Best Electronics paddle controllers with the upgraded pots. When powering on the 2600 with the Harmony and paddles connected, the menu will scroll uncontrollably from page to page and will never stop, making it impossible to select a game. Turning the paddles or pressing the fire button seems to have no effect. The paddles do work fine in-game however, with no issues that I can detect.
I have tested on 2 separate 2600 systems with the same results. I have also tried an older set of paddles (with bad jitter) that do not exhibit this issue.
Any idea what the problem could be?