In order to get the ID for the specific version, you need to check the ID from the database. For example, you can run the following SQL query in the database:
Once you found the ID for the specific version (i.e. ‘Backlog’), you need to access to the ‘Administration’ > ‘Fields’ > ‘Field Configuration’ and click on the link for the Fix Version field. Then, add the following code into the description field on that page:
Please change the value ‘10005’ to the ID value that you found from the database.