diff --git a/openair3/TEST/EPC_TEST/play_scenario.c b/openair3/TEST/EPC_TEST/play_scenario.c
index e7cb8ef84801e711906587e2c402af9530f94dd4..c633cedfa772101144c1a9be47c4f320c8ebe6c5 100644
--- a/openair3/TEST/EPC_TEST/play_scenario.c
+++ b/openair3/TEST/EPC_TEST/play_scenario.c
@@ -921,58 +921,56 @@ int et_play_scenario(et_scenario_t* const scenario, const struct shift_packet_s
     shift = shift->next;
   }
   // now recompute time_relative_to_last_received_packet, time_relative_to_last_sent_packet
-  if (shifts) {
-    packet = scenario->list_packet;
-    while (packet) {
-      if (first_packet > 0) {
-        initial_time = packet->time_relative_to_first_packet;
-        packet->time_relative_to_first_packet.tv_sec  = 0;
-        packet->time_relative_to_first_packet.tv_usec = 0;
-        first_packet = 0;
+  packet = scenario->list_packet;
+  while (packet) {
+    if (first_packet > 0) {
+      initial_time = packet->time_relative_to_first_packet;
+      packet->time_relative_to_first_packet.tv_sec  = 0;
+      packet->time_relative_to_first_packet.tv_usec = 0;
+      first_packet = 0;
+    } else {
+      timersub(&packet->time_relative_to_first_packet, &initial_time,
+          &packet->time_relative_to_first_packet);
+    }
+    if (packet->action == ET_PACKET_ACTION_S1C_SEND) {
+      if (first_sent_packet > 0) {
+        relative_last_sent_packet = packet->time_relative_to_first_packet;
+        packet->time_relative_to_last_sent_packet.tv_sec  = 0;
+        packet->time_relative_to_last_sent_packet.tv_usec = 0;
+        first_sent_packet = 0;
       } else {
-        timersub(&packet->time_relative_to_first_packet, &initial_time,
-            &packet->time_relative_to_first_packet);
+        timersub(&packet->time_relative_to_first_packet, &relative_last_sent_packet,
+            &packet->time_relative_to_last_sent_packet);
+        relative_last_sent_packet = packet->time_relative_to_first_packet;
       }
-      if (packet->action == ET_PACKET_ACTION_S1C_SEND) {
-        if (first_sent_packet > 0) {
-          relative_last_sent_packet = packet->time_relative_to_first_packet;
-          packet->time_relative_to_last_sent_packet.tv_sec  = 0;
-          packet->time_relative_to_last_sent_packet.tv_usec = 0;
-          first_sent_packet = 0;
-        } else {
-          timersub(&packet->time_relative_to_first_packet, &relative_last_sent_packet,
-              &packet->time_relative_to_last_sent_packet);
-          relative_last_sent_packet = packet->time_relative_to_first_packet;
-        }
-        if (first_received_packet > 0) {
-          packet->time_relative_to_last_received_packet.tv_sec  = 0;
-          packet->time_relative_to_last_received_packet.tv_usec = 0;
-        } else {
-          timersub(&packet->time_relative_to_first_packet, &relative_last_received_packet,
-              &packet->time_relative_to_last_received_packet);
-        }
-      } else if (packet->action == ET_PACKET_ACTION_S1C_RECEIVE) {
-        if (first_received_packet > 0) {
-          relative_last_received_packet.tv_sec = packet->time_relative_to_first_packet.tv_sec;
-          relative_last_received_packet.tv_usec = packet->time_relative_to_first_packet.tv_usec;
-          packet->time_relative_to_last_received_packet.tv_sec  = 0;
-          packet->time_relative_to_last_received_packet.tv_usec = 0;
-          first_received_packet = 0;
-        } else {
-          timersub(&packet->time_relative_to_first_packet, &relative_last_received_packet,
-              &packet->time_relative_to_last_received_packet);
-          relative_last_received_packet = packet->time_relative_to_first_packet;
-        }
-        if (first_sent_packet > 0) {
-          packet->time_relative_to_last_sent_packet.tv_sec  = 0;
-          packet->time_relative_to_last_sent_packet.tv_usec = 0;
-        } else {
-          timersub(&packet->time_relative_to_first_packet, &relative_last_sent_packet,
-              &packet->time_relative_to_last_sent_packet);
-        }
+      if (first_received_packet > 0) {
+        packet->time_relative_to_last_received_packet.tv_sec  = 0;
+        packet->time_relative_to_last_received_packet.tv_usec = 0;
+      } else {
+        timersub(&packet->time_relative_to_first_packet, &relative_last_received_packet,
+            &packet->time_relative_to_last_received_packet);
+      }
+    } else if (packet->action == ET_PACKET_ACTION_S1C_RECEIVE) {
+      if (first_received_packet > 0) {
+        relative_last_received_packet.tv_sec = packet->time_relative_to_first_packet.tv_sec;
+        relative_last_received_packet.tv_usec = packet->time_relative_to_first_packet.tv_usec;
+        packet->time_relative_to_last_received_packet.tv_sec  = 0;
+        packet->time_relative_to_last_received_packet.tv_usec = 0;
+        first_received_packet = 0;
+      } else {
+        timersub(&packet->time_relative_to_first_packet, &relative_last_received_packet,
+            &packet->time_relative_to_last_received_packet);
+        relative_last_received_packet = packet->time_relative_to_first_packet;
+      }
+      if (first_sent_packet > 0) {
+        packet->time_relative_to_last_sent_packet.tv_sec  = 0;
+        packet->time_relative_to_last_sent_packet.tv_usec = 0;
+      } else {
+        timersub(&packet->time_relative_to_first_packet, &relative_last_sent_packet,
+            &packet->time_relative_to_last_sent_packet);
       }
-      packet = packet->next;
     }
+    packet = packet->next;
   }
   et_display_scenario(scenario);
 
diff --git a/openair3/TEST/EPC_TEST/play_scenario_fsm.c b/openair3/TEST/EPC_TEST/play_scenario_fsm.c
index 5dee83afc9339e4d43cdbc44788e8bff7677cd86..d253e5cd5fe2c066356a3ea21f8214d7d285b254 100644
--- a/openair3/TEST/EPC_TEST/play_scenario_fsm.c
+++ b/openair3/TEST/EPC_TEST/play_scenario_fsm.c
@@ -135,7 +135,7 @@ void et_scenario_schedule_tx_packet(et_packet_t * packet)
       } else {
         LOG_D(ENB_APP, "last_packet_was_tx\n");
         we_are_too_late = timeval_subtract(&offset,&offset_last_tx_packet,&packet->time_relative_to_last_sent_packet);
-        LOG_D(ENB_APP, "we_are_too_early=%d, offset=%ld.%06d\n", we_are_too_late, offset.tv_sec, offset.tv_usec);
+        LOG_D(ENB_APP, "we_are_too_late=%d, offset=%ld.%06d\n", we_are_too_late, offset.tv_sec, offset.tv_usec);
       }
       if ((0 == we_are_too_late) && (0 == g_max_speed)){
         // set timer
diff --git a/openair3/TEST/EPC_TEST/play_scenario_s1ap_compare_ie.c b/openair3/TEST/EPC_TEST/play_scenario_s1ap_compare_ie.c
index ad720ab7dc2e6272da79067f6fa92c30c4fdbcdd..2242a63bd6c3316ae7f8f791368c470e0105e1ea 100644
--- a/openair3/TEST/EPC_TEST/play_scenario_s1ap_compare_ie.c
+++ b/openair3/TEST/EPC_TEST/play_scenario_s1ap_compare_ie.c
@@ -494,10 +494,11 @@ void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *node, con
             const xmlChar value_d[32];
             const xmlChar value_h[20];
             const xmlChar showname[64];
-            int           ret   = 0;
-            int           pos2  = 0;
-            char          val  = NULL;
-            char          hex[3] = {0,0,0};;
+            int           ret     = 0;
+            int           pos2    = 0;
+            unsigned long int uli = 0;
+            char          hex[3]  = {0,0,0};
+            char         *end_ptr = NULL;
 
             size = strtoul((const char *)xml_char, NULL, 0);
             xmlFree(xml_char);
@@ -518,10 +519,11 @@ void update_xpath_node_mme_ue_s1ap_id(et_s1ap_t * const s1ap, xmlNode *node, con
             do {
               hex[0] = value_h[pos2++];
               hex[1] = value_h[pos2++];
-              hex[2] = 0;
-              val = (unsigned char)strtoul(hex, NULL, 16);
-              AssertFatal(errno != 0, "Conversion of hexstring %s failed", hex);
-              s1ap->binary_stream[pos++] = val;
+              hex[2] = '\0';
+              end_ptr = hex;
+              uli = strtoul(hex, &end_ptr, 16);
+              AssertFatal((uli != ULONG_MAX) && (end_ptr != NULL) && (*end_ptr == '\0'), "Conversion of hexstring %s failed returned %ld errno %d", hex, uli, errno);
+              s1ap->binary_stream[pos++] = (unsigned char)uli;
             } while (pos2 < (2*5));
             // update ASN1
             et_decode_s1ap(s1ap);