What Wildbook are you working in?acw
What is the entire URL out of the browser, exactly where the error occurred?
Can you describe what the issue is you’re experiencing?
We want to confirm that manual edit of an ID to replace underscore with dash is legitimate?
Are you asking if ACW will allow dashes in Marked Individual ID? If so, the answer is yes. I just tested it with my test individual in ACW: https://africancarnivore.wildbook.org/individuals.jsp?id=e9f5bb03-c3fa-4a3f-9613-83b95088b970
I was more concerned about changing the ID in any way causing issues but it seems we are good.