N64 was previously working (with a few tweaks) when I was running 3.2.11. I recently upgraded to beta 17 and now N64 locks up usually after 5 mins or so of use. I'm using and rpi2 and I've tried it overclocked and non-overclocked. I've tried n64 plugin and glide plugin and both have the same issue. Is this what you are experiencing?  have you determined a fix?  it was running decent for me on 3.2.11 other than some sound lags.  No issues with lock up on other emulators.