Yesterday, l posted two videos on !musique@jlai.lu from my piefed ca account. But it's not visible from my Feddit account.

What could be the reason ??🤔🤔

https://feddit.online/c/musique@jlai.lu

The "Une chanson" ones?

Yes...... Ideally they ought to be viewed no matter from which account we log in.......

Those posts have their language set to French. In your settings at https://feddit.online/user/settings you probably don't have French as one of your Content Languages.

Please post future questions like this to !piefed_help@piefed.social

Were you subscribed to the community with your feddit.online account when you made the posts with your piefed.ca account?

Comparing the posts the community shows at feddit.online to the ones directly at jlai.lu, the feddit one is missing a lot of posts. This could mean no one at the feddit instance was subscribed to the community when the posts were made.

That depends if there are any followers of given community on an instance. Also, with feddit.online blinking yesterday, there might be some spots in what it federated. If posts are missing, it might be helpful to use "retrieve remote post" functionality