Group Initiative Help

I have always used the Group Initiative macro but am suddenly having a problem. I set up the macro with the !group-init command and when I click on 'test macro' it successfully enters initiative for the selected tokens.  However, when I clear initiative and place Group Initiative 'In Bar' and then click on that shortcut nothing happens. All my other macros still work fine. Any idea please

what sheet are you using ?

Roll20 5e

What is the contents of your macro?  Do you have any tokens selected?  Are you using @{target} as part of anything in your macro?

Sorry, I meant the Group Initiative API Script. Seemed to work with the 5E OGL sheet but can't get it to work for the Roll20 5E sheet eveb when I have it configured for it.