Nanoleaf triangles no longer turn off at scheduled time (they used to)

Hi!

This is about the same installation as this post:

https://forum.nanoleaf.me/forum/private-topics/schedule-works-only-while-on-the-same-network#private_post_488

After that fix, they worked well for a while. But now (I assume since the most recent firmware update, although I am not 100% sure) they no longer turn off at the scheduled time.

So, they turn on on schedule, but do not turn off on schedule.

Any ideas?

Thanks!