DNS Configuration Error

I have setup 2 subdomain (ebid & bid) (type A) and point to the same IP.
Why is one working and another not? Is there a restriction of the subdomain naming?

Hi @eric.mytaman,

Can you post a screenshot of the records you have added? You can blur out the IPs. Also, can you share the domain so we can check?

I’ve just checked. Now both the url works.
Weird. -.-"