Problem in custom match

[MagneeR47]

Hi, I'm trying to start a custom match with three of my friends but I can't invite all of them. I can only invite two of them. Is this a bug or something?
In case It helps, one of my friends is playing with iPad and the rest on the browser.

I hope you can help me with this.

Thank you!

[Naughty Badger]

I am having this same issue, can't even enjoy a simple game of Catan