For people connected to multiple linkedin ad accounts, the ads add-on automatically pulls in all of your accounts, with no way to disable them. This is especially problematic if you are running linkedin ads for multiple clients (if you're an agency partner) and it pulls in information for all of your clients into each HubSpot portal. Basically the people who use it the most have a worse experience.
I´m experience the same trouble. My workaround was to ask the cleint to add their LinkedIn account to the settings in the add-on. Seems to work for me.