OK,

I tried your adjustments and it worked!
(still don't know why it requires a "2" frame offset?)

I can see that it might not be a glitch in Pro Pack, or in Cinema4D, or not even in the 'plugin' for Cinema.. but it is an 'incompatibility' that other users will face when attempting to use your plugin.

I'll try and put together a help page with the problems that I (we) have dealt with.

Thanks for the help Default
(sorry, no more Survivor videos planned, too busy with C4D)