diff --git a/src/multi_optimization_container.jl b/src/multi_optimization_container.jl
index 7864680..75bd083 100644
--- a/src/multi_optimization_container.jl
+++ b/src/multi_optimization_container.jl
@@ -160,9 +160,9 @@ end
 
 function init_optimization_container!(
     container::MultiOptimizationContainer,
-    ::Type{T},
+    network_model::PSI.NetworkModel{<:PM.AbstractPowerModel},
     sys::PSY.System,
-) where {T <: PM.AbstractPowerModel}
+)
     PSY.set_units_base_system!(sys, "SYSTEM_BASE")
     # The order of operations matter
     settings = PSI.get_settings(container)
@@ -190,7 +190,7 @@ function init_optimization_container!(
         @debug "Initializing Container Subproblem $index" _group =
             PSI.LOG_GROUP_OPTIMIZATION_CONTAINER
         sub_problem.settings = deepcopy(settings)
-        PSI.init_optimization_container!(sub_problem, T, sys)
+        PSI.init_optimization_container!(sub_problem, network_model, sys)
     end
 
     return
diff --git a/src/multiproblem_template.jl b/src/multiproblem_template.jl
index 1f80e40..68a22a6 100644
--- a/src/multiproblem_template.jl
+++ b/src/multiproblem_template.jl
@@ -3,6 +3,11 @@ struct MultiProblemTemplate <: PSI.AbstractProblemTemplate
     sub_templates::Dict{String, PSI.ProblemTemplate}
 end
 
+PSI.get_device_models(template::MultiProblemTemplate) = template.base_template.devices
+PSI.get_branch_models(template::MultiProblemTemplate) = template.base_template.branches
+PSI.get_service_models(template::MultiProblemTemplate) = template.base_template.services
+PSI.get_network_model(template::MultiProblemTemplate) = template.base_template.network_model
+
 function MultiProblemTemplate(
     base_template::PSI.ProblemTemplate,
     problem_keys::Vector{String},
diff --git a/src/problems/multi_region_problem.jl b/src/problems/multi_region_problem.jl
index a78a04d..6bcbfbb 100644
--- a/src/problems/multi_region_problem.jl
+++ b/src/problems/multi_region_problem.jl
@@ -48,7 +48,7 @@ function build_pre_step!(model::PSI.DecisionModel{MultiRegionProblem})
     @info "Initializing Optimization Container For a DecisionModel"
     init_optimization_container!(
         PSI.get_optimization_container(model),
-        PSI.get_network_formulation(PSI.get_template(model)),
+        PSI.get_network_model(PSI.get_template(model)),
         PSI.get_system(model),
     )
     @info "Initializing ModelStoreParams"