BUG - I can't be added to edit a multiple author article

Is there a limit to the number of authors for a multiple author article?

 OldAnimeLady has been trying to add me, but she can't, so I don't have access to our planned article's editing page. 

In the meantime,  we are using Microsoft  Office Online.

 jaaraf:

Is there a limit to the number of authors for a multiple author article?

Yes, four.

I've been bugging Jin to add more :P