DK pet is separate to DK in logs

Just tried to create a log whist doing normal Nythendra and its show my pet separately

Link to log (im Shargra, pet is Sludgefoot):

You logged without Advanced Combat Logging enabled, so pet associations are iffy. You need to turn that on: Network pane in System preferences. The uploader warns you about this with a big red box while you’re uploading.

Thanks, appreciate it!