This is one of those cases where really you want to solve the original problem (delay playing audio tracks) but instead you've found a broken workaround and you were asking how to solve that instead!
File a report in the bugs forum following all the guidelines and I'll take a look. Although it may be as simple as you turned off audio preloading or something.
I have no idea why any other plugin would conflict with an official plugin. I would say it's the third party developer's responsibility to ensure it doesn't conflict.