Expected spend on budget_allocator ?

[ThouShallNotBeNamed]

AllocatorCollect_max_response <- robyn_allocator(
InputCollect = InputCollect,
OutputCollect = OutputCollect,
select_model = select_model,
scenario = "max_response",
channel_constr_low = c(0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5),
channel_constr_up = c(5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0, 5.0),
expected_spend = 16000000, # << CHANGE THIS to your total budget
expected_spend_days = 136 # << CHANGE THIS to your time period
)

plot(AllocatorCollect_max_response)

I am setting an expected_spend, but it does not seem to reflect in my output. In my plot, i see that the robyn_allocator is setting default as the historical spend.

Can someone please help?