Error in Sound Recorder using Effects > Reverse

[1j01]

After recording some audio from the microphone, and stopping recording, I clicked Effects > Reverse, and the visualization became fully green, and an error popped up:

Internal application error: Uncaught RangeError: Failed to execute 'start' on 'AudioBufferSourceNode': The offset provided (-0.0853332) is less than the minimum bound (0).

URL: https://98.js.org/programs/sound-recorder/lib/buffaudio.js
Line: 61
Column: 17

I might've hit play before the error popped up. The time might have been seeked to a negative number somehow?
Hitting play caused the error to recur.
I was able to save the recording just fine.