Sorry for the delay in replying. I took a look at the project and found the issue. The problem here is that the ID values must match exactly including the spacing. In your case, you appear to have entered them by hand or adjusted the formatting to include a space after the comma in the parameter list of the member IDs. This causes a mismatch in the ID resulting in the unknown/invalid link messages. Removing the extra spaces in the affected links will fix the issue.
Eric