If I block a number at 08:44 (see photo) that same number is allowed to ring again at 12:33 and I have to block it again. See also the calls at 10:31 and ’11 minutes ago’, which equates to around 14:25 hours.
I have not enabled "Block calls from unidentified callers" but I expected that numbers I had already blocked would not be allowed to ring again but they do.
Is this failure to block numbers a known problem? If so then is there anything I can do to make it work?