No I always <used to get a red error on the Androids tummy when the cache is cleared in recovery, but it always worked fine. I think some get it but don't notice it as they press power to re-boot.
Someone, @Golfdriver97 possibly, explained recovery mode to me in a thread I started around January about who clears cache regularly, and I posted this happening when I tried it.
I also get a message when I clear cache in storage.
Storage - Clear Cache: " Security policy restricts clearing of this apps cache" , but come back and the cache is clear (not zero obviously, a few kb).
***UPDATE : Actually now I have tried it its showing a red triangle before and after clearing. Maybe since KitKat. It was always showing 'error' in small red letters previously, before or on pressing boot up. No other messages on screen relating to the warning triangle. Doesn't bother me.
Via my Note 3 on AC.