diff --git a/cave_data/1623-Rentner-Express.html b/cave_data/1623-Rentner-Express.html
index 1073df773..35a44542c 100644
--- a/cave_data/1623-Rentner-Express.html
+++ b/cave_data/1623-Rentner-Express.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- This file is generated by troggle on July 27, 2023, 12:22 p.m. UTC using the form documented at /handbook/survey/caveentry.html -->
+<!-- This file is generated by troggle on Sept. 6, 2023, 9:54 p.m. UTC using the form documented at /handbook/survey/caveentry.html -->
 <!-- Only put one cave in this file -->
 <!-- If you edit this 1623-nnn.html file by hand, and manually upload it to the server using git,
 make sure you update the database by doing a full data import. If you edit it using the online form
@@ -10,7 +10,7 @@ though, you do not need to do a data import as it happens automatically -->
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
 </head>
 <body>
-<b>This file is generated by troggle</b> on July 27, 2023, 12:22 p.m. UTC using the form documented at
+<b>This file is generated by troggle</b> on Sept. 6, 2023, 9:54 p.m. UTC using the form documented at
 the form documented at 
 <a href="/handbook/survey/caveentry.html">handbook/survey/caveentry.html</a>
 <br>
@@ -40,11 +40,12 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 
 <entrance>
   <entranceslug>1623-RENTNER</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
+  <!-- DEBUG  1623-RENTNER+1623-RENTNER 'Z' == -->
   <letter></letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
 </entrance>
 
 <explorers></explorers><!-- 'CUCC Expo' and year(s) of exploration. To distinguish from caves explored by foreign groups. Individual names can be given too if it was a small cave. -->
-<survex_file></survex_file><!-- Name of top-level survey file for this cave. Relative to the 'loser' survex repository. So for most caves that's "caves/cavenum/cavnum.svx". (e.g. caves/204/204.svx -->
+<survex_file>caves-1623/rentner/rentner.svx</survex_file><!-- Name of top-level survey file for this cave. Relative to the 'loser' survex repository. So for most caves that's "caves/cavenum/cavnum.svx". (e.g. caves/204/204.svx -->
 <underground_description><pre>
 rentner-1
 rentner-1-14