Hi I noticed today (maybe it started earlier) that all the 160x600 ads are not displaying ads.

I then tried to generate a new async code for 160x600 and saved it into my local laptop.

I pasted the code into a sample html and tried opening with Firefox etc and there is no ad that appears!

Can anyone let me know what's going on? Someone else facing the same issue of 160x600 ads not displaying?

Kindly assist. Thanks