diff --git a/opengait/data/collate_fn.py b/opengait/data/collate_fn.py
index 6767b04..a78c73d 100644
--- a/opengait/data/collate_fn.py
+++ b/opengait/data/collate_fn.py
@@ -13,9 +13,10 @@ class CollateFn(object):
         self.ordered = sample_type[1]
         if self.sampler not in ['fixed', 'unfixed', 'all']:
             raise ValueError
-        if self.ordered not in ['ordered', 'unordered']:
+        if self.ordered not in ['ordered', 'unordered', 'allordered']:
             raise ValueError
         self.ordered = sample_type[1] == 'ordered'
+        self.allordered = self.ordered and "all" in sample_type[1]
 
         # fixed cases
         if self.sampler == 'fixed':
@@ -62,8 +63,16 @@ class CollateFn(object):
                 else:
                     frames_num = random.choice(
                         list(range(self.frames_num_min, self.frames_num_max+1)))
+                if self.allordered:
+                    replace = seq_len < frames_num
 
-                if self.ordered:
+                    if seq_len == 0:
+                        get_msg_mgr().log_debug('Find no frames in the sequence %s-%s-%s.'
+                                                % (str(labs_batch[count]), str(typs_batch[count]), str(vies_batch[count])))
+                    count += 1
+                    indices = sorted(np.random.choice(
+                        indices, frames_num, replace=replace))
+                elif self.ordered:
                     fs_n = frames_num + self.frames_skip_num
                     if seq_len < fs_n:
                         it = math.ceil(fs_n / seq_len)