I am on Meteor 1.12.1 using redis-oplog@2.0.5
Without Oplog this works fine, with oplog i see hundreds of errors in Kadira with the error message

message: Meteor.userId can only be invoked in method calls or publications. stack:
Error: Meteor.userId can only be invoked in method calls or publications.

I see there is already a closed issue for this: here

Could this have been reproduced? should i use an older version of this package?

Issues include as much detail as possible:

• A descriptive title
• A description of the problem you're trying to solve, including why you think this is a problem
• An overview of the suggested solution (if you have an idea)
• If the feature changes current behavior, reasons why your solution is better
• Provide with an example of the publication and the mutation that you do
• Enabled "debug" inside the package and show us some meaningful logs