Top tweet and top media tweet

[Houses]

Hi,

Twitter says:

• Top Tweet: Tweet that received the highest number of impressions
• Top media Tweet: Tweet with photo, video, or Vine that received the highest number of impressions

It's impressions that count and the only difference is whether or not media is attached.

If my top tweet for a month has the most impressions but no media it is the top tweet. Another tweet that has media is then the top media tweet. That makes sense and I've seen it in my Twitter analytics.

I'm confused when my top tweet is one with media but it is somehow not also showing as the top media tweet. Surely it should be? how can another tweet with media and a lower impressions count be the top media tweet when the top tweet is one with media and a higher impressions count.

Thanks