Just updated from 1.5.5 to 1.5.7 and now the players in all my posts
disappeared. Checked it with the actual versions of Opera, Firefoy and IE.
Only in IE if I switch to 'Select Primary Mode: HTML5' I see the player but it doesn't play!
My custom players are still there!
On a wordpress multisite installation (only one blog is active) I tried to activate the plugin network wide or only for the active blog - no change.
I have absolutely no idea how to get it working with the updated version - will force me to use the former version again . . .