Linkerd Tap not showing any data

[olespagnon-vdm]

Hello,
I've installed Linkerd on my on-premise cluster. Everything work fine as far as I can see, except when i try to see live requests using Tap.
In the viz dashboard I get "No data to display".
The proxies are running alongside gRPC apps, the load balancing is working as intended.
But in the tap pod i see this error : "Establishing tap on 10.32.47.148:4190" "level=error msg="[10.32.47.148] encountered an error: rpc error: code = Canceled desc = context canceled"
All the checks of linkerd check are ok except a minor update that has been pushed recently.
I have anotated the deployment with the inject annotation. Do I need to annotated the NS ?
Edit : I think that the context canceled appear when I click somewhere else on the page, which is normal if i'm guessing correctly.
However I still don't see any data from requests in this deployment.