Now I'm trying to reduce artboard on the file. I'd like to know how many artboard is a limit for sharing. Actually, I'm working on a complex mobile app prototype as one XD file using UI components from another XD file. I need to consider separating that if XD doesn't with this architecture.
Sorry to hear you are having trouble in sharing and getting this error and thanks for trying the steps suggested in the article. I am not sure if there is a limit to the number of artboard shared. I would request you to please try these steps and see if that helps-
Reduce number of assets in your files and retry.
Split your artboards into two separate files and retry.