jm ¸6Bºgá¹þòÕð`êP|8ljB{`dÊ£FLDid you have both windows opened and focused at the same time? If you are switching back and forth, the browser pauses the animation and people won't spawn.
https://whatsonchain.com/tx/1fa68e03eb6e579e9db41bf111055f826b7acfcacc43e421272ace9b4af4d307