VBA clearContents function return value changed?

Question

Hello,

Until today we had a script which would check if clearContents were ok:

$r = $worksheet.UsedRange.clearContents()
if (-not $r) {
    throw "No se ha podido limpiar las celdas"
}

Today it started to fail and throw were being executed

I finally removed the check and the throw. I am not sure why this behaviour was changed

Thank you