Why did a follower order calculate to zero?

Follower quantities must be whole contracts. Copilink calculates floor(leader quantity × follower ratio), so a result below one becomes zero and no follower order is sent for that event.

Example: a leader quantity of 1 at a 0.50 ratio gives floor(0.50) = 0. A leader quantity of 3 at the same ratio gives floor(1.50) = 1.