No companion update button available

Viewing this thread in 2022. Still having a similar problem - software set up instructions indicate that the current companion software version is 0.0.31 (as @ 3 Dec 2021: https://bluerobotics.com/learn/bluerov2-software-setup/). However I’m getting no button on the system check page to update from the 0.0.17 that’s on there at the moment. Further, none of the various links to zip files for sideloading onto the Raspberry Pi seem to work. Can anyone point me to either a) a fix on the system page or b) a link to a file that I can sideload in? Cheers