Checking my server logs, I get a stream of PHP warnings from the Pinterest "Pin It" Button Lite plugin:
Illegal string offset 'float' in /wp-content/plugins/pinterest-pin-it-button/inc/shortcode.php on line 62
They're warnings and don't seem to hurt the functionality, but it does fill up the error log. I'd rather not disable PHP warnings; I'm wondering if this is a known issue or something specific to my configuration.
I'm on PHP 5.4.6, WordPress 3.5.1, Pinterest "Pin It" Button Lite 1.4.3.