Automata function fail with >2 tapes

using TensorAutomata 
using TensorAutomata.Semirings 
S = ProbSemiring{Float64}

Σ = Set{Label{String}}(["a", "b", "c"])
Δ = Set{Label{String}}(["d", "e", "f"])
Ω = Set{Label{String}}(["i", "j", "k"])

t_actions = compile(
    [
        (src=1, dest=2, label=("a", "d", "i")),
        (src=1, dest=2, label=("b", "d", "i")),
        (src=1, dest=2, label=("a", "e", "j")) 
    ];
    init = [1], 
    final = [2],
    symbols = (Σ, Δ, Ω),
    semiring = S
)
t_actions = t_actions*t_actions |> rmeps
draw(t_actions)
draw(t_actions(["a","a"],:,:)) # <- OK
draw(t_actions(:,["d","e"],:)) # <- OK
draw(t_actions(:,:,["i","j"])) # <- OK
draw(t_actions(["a","a"],:,["i","j"])) # <- Fail