fix: ensure initializeprobpmap returns floats

Author: AayushSabharwal

src/systems/problem_utils.jl

@@ -1132,7 +1132,7 @@ function maybe_build_initialization_problem(
     if time_dependent_init
         all_init_syms = Set(all_symbols(initializeprob))
         solved_unknowns = filter(var -> var in all_init_syms, unknowns(sys))
-        initializeprobmap = u0_constructor ∘ getu(initializeprob, solved_unknowns)
+        initializeprobmap = u0_constructor ∘ float ∘ getu(initializeprob, solved_unknowns)
     else
         initializeprobmap = nothing
     end