DDVE Time Shift

Hi all greetings...

I am using DDVE with Veeam setting up immutable backup repo....

Everythings go fine until I demo to customer by changing 1. the Veeam server system time, 2. DDVE system time via CLI...

At first, just changing Veeam server system time will create an error if I delete some immutable backup

While doing step 2, the immutability has gone, every backup can be deleted by few clicks.

I am looking for the way to go back and make immutable feature come back.

I tried to reset both VBR time and DD time, still not success.

Or I have to reset everything?