Issue Summary

This is reproducible on Data Center: n/a
Previous to a certain point (first report received on March 28th, 2023) sending an "@ mention" to the Assist bot in a Team it is installed to would provide a suggestion to "Create a ticket with Assist", which essentially allowed users to send a mention to the bot to create a ticket. 
The behavior is no longer reproducible, instead users can only tab off of the at mention or send the message, but the suggestion will no longer prompt so doing so will result in a canned message saying we were unable to create a ticket and provide troubleshooting steps. 

Steps to Reproduce

Please see Loom: https://www.loom.com/share/3d4508c140e7402e909159297fc56b7f

Expected Results

@ mentioning the Assist bot and remaining engaged with it should populate a suggestion to "Create a ticket with Assist"

Actual Results

@ mentioning the Assist bot will not prompt a suggestion to create a ticket. 

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available