Copy Message to Clipboard Doesn't Work in Instant Chat

When attempting to copy the output of a response in the instant chat window, the value stored in the clipboard is blank or null - meaning it also replaces whatever was stored in the clipboard originally.

This occurs if I use either icon underneath the message, or if I click the three dots and select “Copy Message to Clipboard”.

For what it is worth, I can manually select the output and use cmd-c to copy the text.