After uploading new wav files for use in the IVRs, the rules are no longer working properly. The DIDs are being routed to what seem like random IVRs. We did get a format error when initially trying to upload higher-quality wavs. We went back and resampled the wavs per specifications, and re-uploaded the files successfully. Then we configured the IVRs to use the new files, and they worked perfectly. Now a day later, we get some of the old wavs playing (apparently randomly), instead of the new wavs. We checked the configuration and indeed we are pointing to the correct files, but no joy. Also, how to delete the old wav files (to reduce clutter)? We have Google Cloud installation.