Checked three recordings in VP 11.71 here and all were normal. Next thing to try...
Close VP. Then use Windows Explorer (the file manager) to delete all files in these folders. When done, install this VP version.
"C:\Program Files (x86)\NCH Software\Components" (or they may be in the Program Files path (no x86).
"C:\Users\<PC user name>\AppData\Roaming\NCH Software\Components"
If another PC is available, try it there.