Short code 'num' param not working for values higher than 7

Hi,

Using shortcode as such:

[hl-twitter num=50]

What i’m finding is any number greater than 7 for ‘num’ results in zero tweets being listed. My account being used has 10 existing tweet, and they were all imported when i installed this plugin.

I dug into the php in functions.php and placed some debug echo statements and found the LIMIT is getting set properly to whatever ‘num’ is set to in the shortcode param, but there must be some weird problem with the SQL query. Thought I would check here for a solution before going any further. It seems the value of ‘num’ should be able to be set beyond the number actual tweets that exists as it’s just a limit for the page on which it’s displayed.

http://ww.wp.xz.cn/extend/plugins/hl-twitter/