Shipping Services are Zeroing out 0.00 when selected.
If you're noticing that any of the canada post shipping services Zero out when they are selected either on the admin side or the front end. Be sure to check your multiple website views. If you have this free shipping services disabled yet you have a shipping service highlighted then the module thinks that this service should be free all the time.
Below shows a different website view and ensures none of the services are highlighted.