I have saved out a volume sequence using the USD Export SOP. When I go to the folder that contains the VDBs for this USD file, I notice that they only consist of even numbers. This is causing issues in other software, as it expects the filename and the current frame to correspond, so now my VDB is skipping in and out of existence on every frame.

Did I mess something up when exporting? How can I fix this issue? Thanks in advance.