It’s working fine on my slack app on my apple iphone, but not on slack desktop app or slack web browser (I use a mac laptop). 

This issue is happening across all Zaps with Slackbots for me since this morning, all were working fine for months before

the same issue here. I was just deleting some held tasks and thought I somehow broke that :-O 

Hi friends,

Welcome to the Zapier Community! 

If your "Culture Bot" Zap is showing the wrong icon or bot name—like defaulting to the Zapier icon—there are a few steps you can try. First, double-check and re-save the bot settings to ensure the correct name and icon are set. Clear your browser's cache and reload the page, or try a different browser or device to rule out display issues. And upon checking that there is an open ticket for Bot Name shows "Zapier" on iOS instead of what the user entered. I will add everyone to this list so we can update you if the issue is resolve.

I hope this helps. Please let me know if you have any further questions.