diff --git a/src/components/tl/ucp/allreduce/allreduce_sliding_window.c b/src/components/tl/ucp/allreduce/allreduce_sliding_window.c
index b3193dbf68..7a0a5332d6 100644
--- a/src/components/tl/ucp/allreduce/allreduce_sliding_window.c
+++ b/src/components/tl/ucp/allreduce/allreduce_sliding_window.c
@@ -246,11 +246,22 @@ ucc_tl_ucp_allreduce_sliding_window_barrier(ucc_coll_task_t *coll_task)
     status = ucc_tl_ucp_coll_init(&coll_args,
                                   team,
                                   &task->allreduce_sliding_window.barrier_task);
-    ucc_assert(status == UCC_OK);
+    if (status < 0) {
+        tl_error(coll_task->team->context->lib,
+                    "failure during sliding window barrier init: %s",
+                    ucc_status_string(status));
+        task->super.status = status;
+        return;
+    }
 
     status = ucc_tl_ucp_barrier_knomial_start(
                 task->allreduce_sliding_window.barrier_task);
-    ucc_assert(status >= 0);
+    if (status < 0) {
+        tl_error(coll_task->team->context->lib,
+                    "failure during sliding window barrier start: %s",
+                    ucc_status_string(status));
+        task->super.status = status;
+    }
 }
 
 void ucc_tl_ucp_allreduce_sliding_window_progress(ucc_coll_task_t *coll_task)
diff --git a/src/components/tl/ucp/tl_ucp_coll.h b/src/components/tl/ucp/tl_ucp_coll.h
index 4043a4a47e..93132048b5 100644
--- a/src/components/tl/ucp/tl_ucp_coll.h
+++ b/src/components/tl/ucp/tl_ucp_coll.h
@@ -190,7 +190,6 @@ typedef struct ucc_tl_ucp_task {
             ucc_ee_executor_t                *executor;
             int                               put_window_size;
             int                               num_get_bufs;
-            int                               tid;
             ucs_status_ptr_t                 *put_requests;
             int                               service_mode;
             ucc_service_coll_req_t           *allgather_scoll_req;