I just tried it...the 1st movie I chose wouldn't load, kicked back to play...2nd & 3rd movie played fine.
It happens with all free channels sometime or another...movie won't load 1 day & the next play fine.
Roku Stick: 3600X Version 7.6.0 Build 4125-24
Roku 1 SE: 2710X Version 7.6.0 Build
Roku 2 XS: 3100X Version 7.5.0 Build 4099 (Retired)