Integration Packs have tracked fields defined in one account. If the Integration Packs are deployed to different accounts, the tracked fields that were defined in the original account, are not available anymore in any different account, where the integration packs have been deployed.
At the current time, that is how integration packs and tracked fields are working. Tracked fields are designed to be account specific and therefore they do not apply when an Integration Pack is deployed into another account. Therefore, the Tracked Fields functionality is not currently applicable to Integration Packs.