When opening an issue in the Viewer, the camera is well positioned, although instead of revealing the relevant model, it loads models from other disciplines.
The models associated to each issue are managed with the 'discipline' field. It's likely that in this case, that field wasn't properly configured.
From the 'Project Tree', open the ''Manage discipline attributes'' window and make sure that all your IFCs are well tagged:
In your issue, the 'discipline' field should also be populated according to the IFCs that you want to load when opening the issue in the Viewer:
Now, when you'll select the 'Open in viewer' option, only those models should open.
If you're still encountering an unexpected result, please contact our Support team at firstname.lastname@example.org or via our live chat.