Yes, res sub judice can act as a roadblock in legal proceedings by preventing parties from filing lawsuits on related matters while a case is ongoing. This legal doctrine ensures that the same issue is not litigated multiple times in different courts, thus preventing parties from pursuing separate legal actions for the same matter until the current case is resolved. To work around these legal restrictions, parties can focus on filing motions, requests, or appeals within the ongoing case, ensuring that all relevant issues are addressed in the current forum. Additionally, if new claims or issues arise that are distinct from the ongoing case, they must be filed only after the final judgment has been issued in the original case, as long as they do not overlap with the already adjudicated matter. By adhering to the res sub judice rule and carefully managing the case within the established legal framework, one can navigate around these restrictions effectively.