diff --git a/stranger/utils.py b/stranger/utils.py
index de3fad1..c1871aa 100644
--- a/stranger/utils.py
+++ b/stranger/utils.py
@@ -174,7 +174,17 @@ def get_repeat_info(variant_info, repeat_info):
 
     repeat_id = variant_info['info_dict'].get('REPID')
     if not repeat_id:
-        repeat_id = variant_info['info_dict'].get('TRID').split('_')[1]
+
+        for key in ['TRID', 'ID']:
+            value = variant_info['info_dict'].get(key)
+            if value is not None:
+                # Some IDs may have _, some may not
+                if '_' in value:
+                    repeat_id = value.split('_')[1]
+                else:
+                    repeat_id = value
+                break
+    
     if not repeat_id in repeat_info:
         LOG.warning("No info for repeat id %s", repeat_id)
         return None
@@ -223,7 +233,17 @@ def get_trgt_repeat_res(variant_info, repeat_info):
 
     repeat_id = variant_info['info_dict'].get('REPID')
     if not repeat_id:
-        repeat_id = variant_info['info_dict'].get('TRID').split('_')[1]
+
+        for key in ['TRID', 'ID']:
+            value = variant_info['info_dict'].get(key)
+            if value is not None:
+                # Some IDs may have _, some may not
+                if '_' in value:
+                    repeat_id = value.split('_')[1]
+                else:
+                    repeat_id = value
+                break
+
     if not repeat_id in repeat_info:
         LOG.warning("No info for repeat id %s", repeat_id)
         return None
@@ -236,6 +256,10 @@ def get_trgt_repeat_res(variant_info, repeat_info):
             for allele in mc.split(","):
                 mcs = allele.split('_')
                 # GT would have the index of the MC in the ALT field list if we wanted to be specific...
+                
+                # What should we do if MC is . ? 
+                if allele == ".":
+                    continue
 
                 if len(mcs) > 1:
                     pathologic_mcs = repeat_info[repeat_id].get('pathologic_struc', range(len(mcs)))
@@ -365,8 +389,8 @@ def decompose_var(variant_info):
 
     for index, alt in enumerate(variant_info['alts']):
         for individual_index, format_dict in enumerate(variant_info['format_dicts']):
-            gts = format_dict["GT"].split("/")
-
+            gts = re.split(r'[\/|]', format_dict["GT"])
+            delimiter = "/" if "/" in format_dict["GT"] else "|"
             updated_fields = []
             for gt_component, decomposed_field in enumerate(gts):
                 if decomposed_field == "0":
@@ -386,7 +410,7 @@ def decompose_var(variant_info):
                         # unclear component
                         updated_fields.append(".")
 
-            result_variants[index]['format_dicts'][individual_index]['GT'] = "/".join(updated_fields)
+            result_variants[index]['format_dicts'][individual_index]['GT'] = delimiter.join(updated_fields)
 
             for field, individual_value in format_dict.items():
                 if field in ["GT"]: