Having an issue with the (live:) macro

[proferensie]

Hi there. I tried stopping one track while playing another using the following method:
(live: 25s)[(stop:)(track: 'typewriter', 'stop')(track: 'paperout', 'play')]
It did stop the previous track and play the new one. However it also caused the page to kind of flicker, like it was being reloaded.
It didn't happen with Harlowe 3.2 so I was a bit confused.
Many thanks.