diff --git a/strkit/call/call_locus.py b/strkit/call/call_locus.py
index 2b1635a..a7efb84 100644
--- a/strkit/call/call_locus.py
+++ b/strkit/call/call_locus.py
@@ -1125,8 +1125,9 @@ def get_read_length_partition_mean(p_idx: int) -> float:
 
         if n_read_cn_iters >= max_rcn_iters:
             logger_.debug(
-                "%s - locus repeat counting exceeded maximum # iterations (%d)",
+                "%s - %s: read repeat counting exceeded maximum # iterations (%d)",
                 locus_log_str,
+                rn,
                 n_read_cn_iters,
             )
 
@@ -1193,6 +1194,10 @@ def get_read_length_partition_mean(p_idx: int) -> float:
                         locus_log_str,
                         tr_read_seq_wc[:20],
                     )
+
+                    print(ref_seq)
+                    print(tr_read_seq_wc)
+
                     return {
                         **locus_result,
                         "peaks": None,