Missing live minute bars - DDOG

Yesterday on the 2022-07-19, I listen to live minute bars using WS V2, to several stocks.
On minutes 09:39:00 and 10:05:00, I did get minute bars for all the listen stocks except DDOG

So it cannot be problem with my internet because I did get other stocks data on those minutes.
Also, today (2022-07-20) I downloaded DDOG symbol historical minute bars for date 2022-07-19 and I see that I did get the missing minute bars from above.

Do you know why it happened ? How can it be solved ?

Thanks a lot,
Omer !