I’m on Bitrise using Chrome and a Windows 10 64-bit machine. When I go to edit a workflow, I can add one step successfully. However, if I try to add a second step, when clicking on the “+” button, the button just flashed and the integration finder does not appear. The only way to workaround this issue is to completely close Chrome and re-launch. Just closing and re-opening the bitrise tab within Chrome does not work.
Can you please open the Inspector view and take some screenshot? Probably there will be some error message which would be useful to get the cause of the error.