HubSpot Integration (call activity is being logged against the wrong person)

We are using Zoom as our phone system and have linked it to HubSpot.

We're dialing people through the Zoom app, which allows us to ring HubSpot contacts because they're pulled directly into the app.

We're having an issue where call activity is being logged against the wrong person/company or multiple contacts while we're forwarding a call.

According to HubSpot, the problem is in the integration.

How can we fix it?