Issues with Duplicate Merged Files during Project Transfer

We would greatly appreciate your assistance with this matter. Our project involved the creation of merged clips, followed by the generation of proxies twice. Initially, we encountered issues in Premiere Pro with proxy connectivity and the inability to reposition the burn-in data at the screen's bottom. Subsequently, we transitioned to Resolve for proxy creation, which successfully linked to the merged clips. However, we encountered a challenge when attempting to import projects back into Premiere that had edits made with the earlier proxies. This action resulted in duplicated merged files. Is there a method to avoid this duplication issue?