I hope it’s appropriate to report a similar instance of this bug in this thread.
I’m experiencing multiple windows of the same collection opening when clicking collection links but only after closing the window to the target collection.
What I mean is that if I launch Notenik and open a collection then collection links (whether they are activated from another collection or from another app entirely) will lead me to the target collection in the window that it opened in. As expected.
If I close that window then click a link leading to it, the corresponding note or collection will open fine the first time. However all subsequent activations of a Notenik URL will spawn new windows of the same collection.
This occurs when opening a collection from the Navigation Board, as well as when a tag link is pressed when viewing a note in Display mode.
I’ve observed the behavior with both shortcut and path URLs.
I recorded a screen capture: