Im using Alfred 3.1.6, Todoist workflow 4.0.2. Mac OS 10.13.5. Everything @erikRS posted is my exact experience. I tried typing t:token and it does a google search. I tried every variation in the Todoist thread with no luck. Everything after t: and todo, turns into a google search. Im thinking its an token issue but i cant seem to get it installed. Forgive me, im totally new to Alfred and to MacOS. Here is what i came up with in the debug mode when i typed t:token
Starting debug for 'Alfred Workflow Todoist'
[2018-06-11 15:36:32][input.scriptfilter] Queuing argument '(null)'