Sorry to hear about the trouble, we'll try our best to help you with it. Could you please share a few more details like:
XD version 184.108.40.206
recent Mac OS
private home networks
View setting - Design Review
The situation is I am teaching a group of students remotely. The students have Adobe CC from collegebuys.org. Most students have MacOS, some have Windows. All students are using their home networks. Some students are able to get the share link and others get the message that the feature is not availble.