A frequent question on forums is whether using an FLP downgrader violates Image-Line’s terms of service. The short answer is , as long as both parties own a legitimate license.
This sometimes strips the specific "newer" metadata that causes the version block. Known Limitations Plugin Loss
If you are looking for a fix because your project won't open or is "broken," use the built-in Diagnostic Tool Open FL Studio and go to Help > Diagnostics "Fix FL Studio song project" Browse for your .flp and choose to "Remove a plugin that crashes when file is opened"
If a project won't open, users often look for a "fix." Image-Line provides a built-in Diagnostic Tool
Some users report success by attempting to open the newer file in an older version, clicking