Set-MPPreference for setting defender update once in a week not working

Question

I used the following powershell scripts to set the defender update on Sundays at 2 am:

Set-MpPreference -SignatureScheduleDay sunday

Set-MpPreference -SignatureScheduleTime "02:00"

Set-MpPreference -SignatureUpdateCatchupInterval 7

Set-MpPreference -SignatureUpdateInterval 0

Set-MpPreference -SignatureBlobUpdateInterval 0

However, Defender is doing updates once a day at 11:14am as the log show this:

Time Created: 02/27/2024 11:14:45 ID: 19 - Installation Successful: Windows successfully installed the following update: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.651.0) - Current Channel (Broad) Update KB: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.651.0) - Current Channel (Broad)

Time Created: 02/26/2024 11:14:46 ID: 19 - Installation Successful: Windows successfully installed the following update: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.607.0) - Current Channel (Broad) Update KB: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.607.0) - Current Channel (Broad)

Time Created: 02/25/2024 11:14:42 ID: 19 - Installation Started: Windows has started installing the following update: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.553.0) - Current Channel (Broad) Update KB: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.553.0) - Current Channel (Broad)

Time Created: 02/24/2024 11:14:44 ID: 19 - Installation Successful: Windows successfully installed the following update: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.486.0) - Current Channel (Broad) Update KB: Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (Version 1.405.486.0) - Current Channel (Broad)

Can anyone provide instructions on how to do it properly as the microsoft learn topic about Set-MPpreference doesn't provide much info.

Thanks.