Got it! Would you know whether the small 30-46 chainrings can be really attached to the Magene Powermeter S1103? Seems like due to the small size of the 30t chainring it's not always guaranteed to fit because of the BCD?

Chainrings for reference: https://www.bike-discount.de/en/shimano-grx-fc-rx610-2x12-speed-chainring

Does anyone know why YBN 11 and 12 speed chains aren't available to ship to Canada now?
I can't seem to find one that will ship to Canada these days.

Heads up with customer service experience with Magene. The larger crank bolt mechanism worked itself loose recently on my pes505 (which from what I gather is not all that uncommon). I contacted Magene and they said they would replace it but I'm being charged $30 USD for shipping for that small part. I find it hard to believe that it costs that much to ship something so small, given most stuff that size ships free from China to Canada.
I wish they were just honest and said they have to charge me for the part, even then $30usd for a bolt is crazy expensive for that part. Unfortunately the thread size is different so Shimano or Senicx don't work.