I figured that finally, basically went through the code and could display the status var of rss object, it says 500. Then I could finally display the error and it says limit 2s timeout, the time out of fetching the rss, and this hit me , because this rss is pretty big, so increasing to 5s fixed the problem :)

thanks Joseph to figure the problem

I just thought that there are WP functions which deals with caching.

I played also with code little bit, found cache_age vars or other which may be responsible for keeping the cache but there must be something else yet like you said.

So I removed the new record and that bad one.

Now it does not cache at all, my rss feed won’t show up because fetch_rss() return false.

I wonder why it doesn’t want to cache new feeds

Any ideas

I know that this is not right place to ask about that but you may know the solution.

Thanks

I replaced the url of the rss from the same user picasa account and this WP took it.

Caching old rss maybe possible, but have no idea how to clear it.

Thanks for help and responds.

it use correct version.