diff --git a/parsers/caves.py b/parsers/caves.py
index e66b46a..ced0aea 100644
--- a/parsers/caves.py
+++ b/parsers/caves.py
@@ -24,13 +24,14 @@ def readcaves():
 
     print (" - Setting pending caves")
     # Do this first, so that these empty entries are overwritten as they get properly created.
+    
     # For those caves which do not have XML files even though they exist and have surveys
     # also needs to be done *before* entrances so that the entrance-cave links work properly.
-    forgotten = ["2007-04", "2007-05", "2007-06", "2007-07", "2007-12", "2009-01", "2009-02", 
+    pending = ["2007-04", "2007-05", "2007-06", "2007-07", "2007-12", "2009-01", "2009-02", 
             "2010-06", "2010-07", "2012-ns-01", "2012-ns-02", "2010-04", "2012-ns-05", "2012-ns-06", 
             "2012-ns-07", "2012-ns-08", "2012-ns-12", "2012-ns-14", "2012-ns-15", "2014-bl888", 
             "2018-pf-01", "2018-pf-02", "haldenloch", "gruenstein"]
-    for k in forgotten:
+    for k in pending:
         try:
             cave = models_caves.Cave(
                     unofficial_number = k, 
@@ -44,8 +45,19 @@ def readcaves():
                 message = " ! {:11s} {}".format(cave.unofficial_number, cave.underground_description)
                 DataIssue.objects.create(parser='caves', message=message)
                 print(message)
+                
+                try: # Now create a slug ID
+                    cs = models_caves.CaveSlug.objects.update_or_create(cave = cave,
+                              slug = "PENDING-" + k,
+                              primary = False)
+                except:
+                    message = " ! {:11s} {} PENDING cave slug create failure".format(k)
+                    DataIssue.objects.create(parser='caves', message=message)
+                    print(message)
             else:
                 print("Failed to create cave {} ".format(k))
+                
+
         except:
             message = " ! Error. Cannot create pending cave, pending-id:{}".format(k)
             DataIssue.objects.create(parser='caves', message=message)
diff --git a/parsers/survex.py b/parsers/survex.py
index 19b8466..a8eb401 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -3,10 +3,10 @@ import os
 import re
 import time
 import copy
+import subprocess
 
 from pathlib import Path
 from datetime import datetime, timedelta
-from subprocess import call, run
 
 from django.utils.timezone import get_current_timezone
 from django.utils.timezone import make_aware
@@ -1076,7 +1076,7 @@ class LoadingSurvex():
         def runcavern():
             print(" -  Regenerating stale (or chaos-monkeyed) cavern .log and .3d for '{}'\n    days svx old: {:.1f}  cav:{:.1f}   log old: {:.1f}".
                 format(fullpath, (svx_t - log_t)/(24*3600), (cav_t - log_t)/(24*3600), (now - log_t)/(24*3600)))
-            call([settings.CAVERN, "--log", "--output={}".format(fullpath), "{}.svx".format(fullpath)])
+            subprocess.call([settings.CAVERN, "--log", "--output={}".format(settings.THREEDCACHEDIR), "{}.svx".format(fullpath)])
 
         svxpath = fullpath + ".svx"
         logpath = fullpath + ".log"
@@ -1086,7 +1086,7 @@ class LoadingSurvex():
             return
 
         if not self.caverndate:
-            completed_process = run(["which", "{}".format(settings.CAVERN)], 
+            completed_process = subprocess.run(["which", "{}".format(settings.CAVERN)], 
                                     capture_output=True, check=True, text=True)
             self.caverndate = os.path.getmtime(completed_process.stdout.strip())
         cav_t = self.caverndate
@@ -1252,10 +1252,10 @@ def LoadPositions():
     def runcavern3d():
         print(" -  Regenerating stale cavern .log and .3d for '{}'\n    days old: {:.1f}    {:.1f}    {:.1f}".
             format(topdata, (svx_t - d3d_t)/(24*3600), (cav_t - d3d_t)/(24*3600), (now - d3d_t)/(24*3600)))
-        call([settings.CAVERN, "--log", "--output={}".format(topdata), "{}.svx".format(topdata)])
+        subprocess.call([settings.CAVERN, "--log", "--output={}".format(topdata), "{}.svx".format(topdata)])
         
         print(" -  Regenerating {} {}.3d  in  {}".format(settings.SURVEXPORT, topdata, settings.SURVEX_DATA))
-        call([settings.SURVEXPORT, '--pos', '{}.3d'.format(topdata)], cwd = settings.SURVEX_DATA)
+        subprocess.call([settings.SURVEXPORT, '--pos', '{}.3d'.format(topdata)], cwd = settings.SURVEX_DATA)
 
     topdata = os.fspath(Path(settings.SURVEX_DATA) / settings.SURVEX_TOPNAME)
     print((' - Generating a list of Pos from %s.svx and then loading...' % (topdata)))
@@ -1265,7 +1265,7 @@ def LoadPositions():
     print("\n") # extra line because cavern overwrites the text buffer somehow
     # cavern defaults to using same cwd as supplied input file
 
-    completed_process = run(["which", "{}".format(settings.CAVERN)], 
+    completed_process = subprocess.run(["which", "{}".format(settings.CAVERN)], 
                             capture_output=True, check=True, text=True)
     cav_t = os.path.getmtime(completed_process.stdout.strip())