Hi all,
Currently, we are facing two following errors when we try to add a local author to the publication workflow or workspace item submission form.
1. Error: "Unable to add relationship
No suitable match could be found for relationship type isAuthorOfPublication between the two items"

Unfortunately, there were no dspace logs, angular, solr and tomcat logs when this error occurs. No logs even in the browser console and network.
I have checked the dspace technical forum for a similar issue and couldn't find one.
Also, there was an issue similar to this in github,
https://github.com/DSpace/dspace-angular/issues/1661 . But, this helped us to troubleshoot but it doesn't help us to fix it.
Steps to replicate:
1. Create a publication item in a collection which has a workflow.
2. Add multiple authors through Orcid tab the author lookup window.
3. Deposit it.
4. Go to Workflow tasks and edit the same item.
5. Try adding the new local author
2. In publication submission form, if we add multiple (say 2) authors manually (without looking up), sometimes it takes only one author
and other author vanishes once refreshed or accessed the form from workspace once again.
Even this issue doesn't seem to logs anything in dspace logs, solr or tomcat logs.
Have anyone faced these issues and solved it?
We would be glad if anyone could help us on this.
Thanks and Regards,
Akshay Karthik Thana Sekar