Can you please provide system information, so we know what client software you are using. It is possible the bug is platform specific.

Although you have specified that time of game day does not matter, please provide this information as well.

Please provide a specific sight seeing point (area and X Y) that you tried, and the steps taken to attempt to complete that specific sight seeing point.
Example:
1. stand on these X Y coordinates
2. type /lookout
3. ...
4. ...

Yes, this might be obvious, but in order to reproduce a bug the development team needs precise steps that you followed to reproduce it.

If this information is not provided this will most likely not be investigated and moved to the "insufficient information" section.
Please provide as much detail as possible to assist in pinpointing the possible bug. It will ease up the work required for the community team and development team

Once all the information to reproduce the bug is available here it can be hopefully confirmed and then appropriate action taken.