Hello,
In Autodesk Docs, when you have created a lot of issue (for instance, more 500 issue in the same file). It is a nightmare graphical to find the right one, see the screen capture below :

Note : pushpin have the same size even if there aren't in the same position.
My suggestions:
* Change the displayed size pushpin depending on where you are in your exploration
* Hide automatically pushpin when they are behind obstacle
Thanks
Olivier