diff --git a/include/simsycl/detail/parallel_for.hh b/include/simsycl/detail/parallel_for.hh
index 2d00bf9..a356c92 100644
--- a/include/simsycl/detail/parallel_for.hh
+++ b/include/simsycl/detail/parallel_for.hh
@@ -68,7 +68,9 @@ void execute_parallel_for(const sycl::range<Dimensions> &range, const Offset &of
     const KernelFunc &func,
     Reducers &...reducers) //
 {
+    printf("execute_parallel_for 71\n");
     register_kernel_on_static_construction<KernelName, KernelFunc>();
+    printf("execute_parallel_for 73\n");
 
     simple_kernel<Dimensions, with_offset_v<Offset>> kernel;
     if constexpr(std::is_invocable_v<const KernelFunc, sycl::item<Dimensions, with_offset_v<Offset>>, Reducers &...,
@@ -79,7 +81,9 @@ void execute_parallel_for(const sycl::range<Dimensions> &range, const Offset &of
             std::is_invocable_v<const KernelFunc, sycl::item<Dimensions, with_offset_v<Offset>>, Reducers &...>);
         kernel = [&](const sycl::item<Dimensions> &item) { func(item, reducers...); };
     }
-    sequential_for(range, offset, kernel);
+    printf("execute_parallel_for 84\n");
+    sequential_for(range, offset, kernel);    
+    printf("execute_parallel_for 86\n");
 }
 
 template<typename KernelName, int Dimensions, typename KernelFunc, typename... Reducers>
@@ -137,6 +141,7 @@ void parallel_for(sycl::range<Dimensions> num_work_items, sycl::kernel_handler k
 template<typename KernelName, typename KernelFunc, int Dimensions>
 void parallel_for(sycl::range<Dimensions> num_work_items, sycl::id<Dimensions> work_item_offset,
     sycl::kernel_handler kh, const KernelFunc &kernel_func) {
+    printf("parallel_for 140\n");
     execute_parallel_for<KernelName>(num_work_items, work_item_offset, kh, kernel_func);
 }
 
diff --git a/include/simsycl/sycl/handler.hh b/include/simsycl/sycl/handler.hh
index 668355e..06f065f 100644
--- a/include/simsycl/sycl/handler.hh
+++ b/include/simsycl/sycl/handler.hh
@@ -91,6 +91,7 @@ class handler {
     template<typename KernelName = simsycl::detail::unnamed_kernel, typename KernelType, int Dimensions>
     SIMSYCL_DETAIL_DEPRECATED_IN_SYCL void parallel_for(
         range<Dimensions> num_work_items, id<Dimensions> work_item_offset, KernelType &&kernel_func) {
+        printf("parallel_for 94\n");
         detail::parallel_for<KernelName>(num_work_items, work_item_offset, kernel_handler(this), kernel_func);
     }
 
diff --git a/src/simsycl/schedule.cc b/src/simsycl/schedule.cc
index 93e4b24..af18465 100644
--- a/src/simsycl/schedule.cc
+++ b/src/simsycl/schedule.cc
@@ -43,27 +43,33 @@ namespace simsycl::detail {
 template<int Dimensions, typename Offset>
 void sequential_for(const sycl::range<Dimensions> &range, const Offset &offset,
     const simple_kernel<Dimensions, with_offset_v<Offset>> &kernel) {
+    printf("sequential_for 46\n");
     // limit the number of work items scheduled at a time to avoid allocating huge index buffers
     constexpr size_t max_schedule_chunk_size = 16 << 10;
     const auto schedule_chunk_size = std::min(range.size(), max_schedule_chunk_size);
     const auto &schedule = get_cooperative_schedule();
     std::vector<size_t> order(schedule_chunk_size);
     auto schedule_state = schedule.init(order);
-
+    
+    printf("sequential_for 54\n");
     for(size_t schedule_offset = 0; schedule_offset < range.size(); schedule_offset += max_schedule_chunk_size) {
         for(size_t schedule_id = 0; schedule_id < schedule_chunk_size; ++schedule_id) {
             const auto linear_id = schedule_offset + order[schedule_id];
             if(linear_id < range.size()) {
                 if constexpr(with_offset_v<Offset>) {
                     const auto id = offset + linear_index_to_id(range, linear_id);
-                    kernel(make_item(id, range, offset));
+                    printf("sequential_for 61\n");
+                    kernel(make_item(id, range, offset));                    
+                    printf("sequential_for 63\n");
                 } else {
                     const auto id = linear_index_to_id(range, linear_id);
                     kernel(make_item(id, range));
                 }
             }
         }
+        printf("sequential_for 68\n");
         schedule_state = schedule.update(schedule_state, order);
+        printf("sequential_for 70\n");
     }
 }
 
diff --git a/test/ambiguity_tests.cc b/test/ambiguity_tests.cc
index 7d7827a..f47f964 100644
--- a/test/ambiguity_tests.cc
+++ b/test/ambiguity_tests.cc
@@ -7,23 +7,44 @@ using namespace sycl;
 SIMSYCL_START_IGNORING_DEPRECATIONS
 
 TEST_CASE("Calls to the deprecated parallel_for signature are not ambiguous", "[ambiguity][parallel_for]") {
+    printf("START\n");
     queue q;
+    printf("q\n");
     constexpr int offset = 7;
+    printf("1D\n");
     SECTION("1D") {
+        printf("1D A\n");
         q.submit([&](handler &cgh) {
-            cgh.parallel_for(range<1>{1}, id<1>{offset}, [=](id<1> i) { CHECK(i[0] == offset); });
+            printf("1D B\n");
+            cgh.parallel_for(range<1>{1}, id<1>{offset}, [=](id<1> i) {
+                printf("1D C\n");
+                CHECK(i[0] == offset);
+                printf("1D D\n");
+            });
+            printf("1D E\n");
         });
+        printf("1D F\n");
     }
+    printf("2D\n");
     SECTION("2D") {
+        printf("2D A\n");
         q.submit([&](handler &cgh) {
-            cgh.parallel_for(range<2>{1, 1}, id<2>{0, offset}, [=](id<2> i) { CHECK(i == id<2>{0, offset}); });
+            printf("2D B\n");
+            cgh.parallel_for(range<2>{1, 1}, id<2>{0, offset}, [=](id<2> i) {
+                printf("2D C\n");
+                CHECK(i == id<2>{0, offset});                
+                printf("2D D\n");
+            });
+            printf("2D F\n");
         });
     }
+    printf("3D\n");
     SECTION("3D") {
         q.submit([&](handler &cgh) {
             cgh.parallel_for(range<3>{1, 1, 1}, id<3>{0, offset, 0}, [=](id<3> i) { CHECK(i == id<3>{0, offset, 0}); });
         });
     }
+    printf("END\n");
 }
 
 SIMSYCL_STOP_IGNORING_DEPRECATIONS