Reel sharing option on Facebook not available

Hello,

I have a creator Instagram account linked to my Facebook page (which is connected to a Meta Business account). The posts (not reels) on Instagram are being published on Facebook without any issues, but the reels are not. On Instagram, in the menu: settings and privacy/account space/shared experiences/multiple profile sharing, if I choose my Instagram account, in the 'Automatically share' section, I do not have the option to share reels. I manage another Instagram account linked to a different Facebook page, and that option is available there!

I have been frustrated with this problem for days without finding a solution.

I have disconnected and reconnected the IG accounts/Facebook page without success.

Can someone please help me?

Thanks in advance!