XF 1.5 Alert links going to wrong post?

[Joe Link]

I'm having an issue with alerts that isn't easy for me to reproduce, though I have intermittently, where alert links in the dropdown box are taking members to the wrong post. It seems like it'll take them to one of their posts, which the same user liked, but not the correct one. I say seems like because I could be wrong about this.

Any ideas?

 

[Paul B]

What is the URL of the link when you hover over the alert?

What is the URL of the post which is loaded?

 

[Joe Link]

I'll try to reproduce then post it.