ACW: problem with the Merge Individuals functionality

In which Wildbook did the issue occur? ACW

What operating system were you using? Windows 10

What web browser were you using? latest Chrome

What is your role on the site? admin & researcher

What happened?
Caramel (BPC_LpF59) was merged into Tutu (BPC_LpF22) by the user.
Although the audit log (under researcher comments) shows the merge happened, the BPC_LpF59 ID isn’t displaying in a “Merged” name field nor is the nickname Caramel displaying next to the Tutu nickname.

What did you expect to happen?
I expected a new Merged name field to be created automatically and for it to display the ID of the animal that was merged, and for the nickname of the merged individual to also display in the nickname field, next to the nickname Tutu.

Here are a couple of examples: