One colleague talks and talks and talks. He dominates every meeting, whether the meeting is on a video call or in person.
He drones on for sometimes half an hour at a time, often about non work related crap. I have tried to interrupt/stop him many a time but he'll say 'hold on, let me finish what I'm saying' and continues with another 10 minute monologue.
He also interrupts everyone, so for example if I asked a question to our managers during the meeting he would just butt in and hijack my question or hijack their answers, and his answer would just be a load of bullshit followed by a monologue.
I've spoken to my manager about him several times and he agrees that it is annoying and inappropriate behaviour but says it is just how this man is and it's not fair to expect people to change their entire personality.
To add, if on the rare chance I get to add anything in a meeting without this man butting in, I would be shut down by our managers changing the subject after maybe 30 seconds of me talking.
AIBU to raise a grievance about this behaviour?