diff --git a/content/posts/2019-01.md b/content/posts/2019-01.md
index abe8d8dd9..cb2bbcba2 100644
--- a/content/posts/2019-01.md
+++ b/content/posts/2019-01.md
@@ -819,4 +819,20 @@ COPY 1109
   - 70.32.83.92 is CCAFS
   - 205.186.128.185 is CCAFS or perhaps another Macaroni Bros harvester (new ILRI website?)
 
+- Following up on the thumbnail issue that we had in [2018-12]({{< relref "2018-12.md" >}})
+- It looks like the two items with problematic PDFs both have thumbnails now:
+  - [10568/98390](https://hdl.handle.net/10568/98390)
+  - [10568/98391](https://hdl.handle.net/10568/98391)
+- Just to make sure these were not uploaded by the user or something, I manually forced the regeneration of these with DSpace's `filter-media`:
+
+```
+$ schedtool -D -e ionice -c2 -n7 nice -n19 /home/cgspace.cgiar.org/bin/dspace filter-media -v -f -i 10568/98390
+$ schedtool -D -e ionice -c2 -n7 nice -n19 /home/cgspace.cgiar.org/bin/dspace filter-media -v -f -i 10568/98391
+```
+
+- Both of these were successful, so there must have been an update to ImageMagick or Ghostscript in Ubuntu since early 2018-12
+- Looking at the apt history logs I see that on 2018-12-07 a security update for Ghostscript was installed (version 9.26~dfsg+0-0ubuntu0.16.04.3)
+- I think this Launchpad discussion is relevant: https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517
+- As well as the original Ghostscript bug report: https://bugs.ghostscript.com/show_bug.cgi?id=699815
+
 <!-- vim: set sw=2 ts=2: -->
diff --git a/docs/2019-01/index.html b/docs/2019-01/index.html
index 68bfdbc40..372826780 100644
--- a/docs/2019-01/index.html
+++ b/docs/2019-01/index.html
@@ -27,7 +27,7 @@ I don&rsquo;t see anything interesting in the web server logs around that time t
 " />
 <meta property="og:type" content="article" />
 <meta property="og:url" content="https://alanorth.github.io/cgspace-notes/2019-01/" /><meta property="article:published_time" content="2019-01-02T09:48:30&#43;02:00"/>
-<meta property="article:modified_time" content="2019-01-23T13:38:00&#43;02:00"/>
+<meta property="article:modified_time" content="2019-01-23T17:27:09&#43;02:00"/>
 
 <meta name="twitter:card" content="summary"/>
 <meta name="twitter:title" content="January, 2019"/>
@@ -60,9 +60,9 @@ I don&rsquo;t see anything interesting in the web server logs around that time t
   "@type": "BlogPosting",
   "headline": "January, 2019",
   "url": "https://alanorth.github.io/cgspace-notes/2019-01/",
-  "wordCount": "4073",
+  "wordCount": "4210",
   "datePublished": "2019-01-02T09:48:30&#43;02:00",
-  "dateModified": "2019-01-23T13:38:00&#43;02:00",
+  "dateModified": "2019-01-23T17:27:09&#43;02:00",
   "author": {
     "@type": "Person",
     "name": "Alan Orth"
@@ -1091,13 +1091,35 @@ COPY 1109
 </code></pre>
 
 <ul>
-<li>I think it&rsquo;s the usual IPs:
+<li><p>I think it&rsquo;s the usual IPs:</p>
 
 <ul>
 <li>45.5.186.2 is CIAT</li>
 <li>70.32.83.92 is CCAFS</li>
 <li>205.186.128.185 is CCAFS or perhaps another Macaroni Bros harvester (new ILRI website?)</li>
 </ul></li>
+
+<li><p>Following up on the thumbnail issue that we had in <a href="/cgspace-notes/2018-12/">2018-12</a></p></li>
+
+<li><p>It looks like the two items with problematic PDFs both have thumbnails now:</p>
+
+<ul>
+<li><a href="https://hdl.handle.net/10568/98390"><sup>10568</sup>&frasl;<sub>98390</sub></a></li>
+<li><a href="https://hdl.handle.net/10568/98391"><sup>10568</sup>&frasl;<sub>98391</sub></a></li>
+</ul></li>
+
+<li><p>Just to make sure these were not uploaded by the user or something, I manually forced the regeneration of these with DSpace&rsquo;s <code>filter-media</code>:</p></li>
+</ul>
+
+<pre><code>$ schedtool -D -e ionice -c2 -n7 nice -n19 /home/cgspace.cgiar.org/bin/dspace filter-media -v -f -i 10568/98390
+$ schedtool -D -e ionice -c2 -n7 nice -n19 /home/cgspace.cgiar.org/bin/dspace filter-media -v -f -i 10568/98391
+</code></pre>
+
+<ul>
+<li>Both of these were successful, so there must have been an update to ImageMagick or Ghostscript in Ubuntu since early 2018-12</li>
+<li>Looking at the apt history logs I see that on 2018-12-07 a security update for Ghostscript was installed (version 9.26~dfsg+0-0ubuntu0.16.04.3)</li>
+<li>I think this Launchpad discussion is relevant: <a href="https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517">https://bugs.launchpad.net/ubuntu/+source/ghostscript/+bug/1806517</a></li>
+<li>As well as the original Ghostscript bug report: <a href="https://bugs.ghostscript.com/show_bug.cgi?id=699815">https://bugs.ghostscript.com/show_bug.cgi?id=699815</a></li>
 </ul>
 
 <!-- vim: set sw=2 ts=2: -->
diff --git a/docs/sitemap.xml b/docs/sitemap.xml
index 4ca201f55..11bb1dbfe 100644
--- a/docs/sitemap.xml
+++ b/docs/sitemap.xml
@@ -4,7 +4,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/2019-01/</loc>
-    <lastmod>2019-01-23T13:38:00+02:00</lastmod>
+    <lastmod>2019-01-23T17:27:09+02:00</lastmod>
   </url>
   
   <url>
@@ -204,7 +204,7 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/</loc>
-    <lastmod>2019-01-23T13:38:00+02:00</lastmod>
+    <lastmod>2019-01-23T17:27:09+02:00</lastmod>
     <priority>0</priority>
   </url>
   
@@ -221,19 +221,19 @@
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/notes/</loc>
-    <lastmod>2019-01-23T13:38:00+02:00</lastmod>
+    <lastmod>2019-01-23T17:27:09+02:00</lastmod>
     <priority>0</priority>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/posts/</loc>
-    <lastmod>2019-01-23T13:38:00+02:00</lastmod>
+    <lastmod>2019-01-23T17:27:09+02:00</lastmod>
     <priority>0</priority>
   </url>
   
   <url>
     <loc>https://alanorth.github.io/cgspace-notes/tags/</loc>
-    <lastmod>2019-01-23T13:38:00+02:00</lastmod>
+    <lastmod>2019-01-23T17:27:09+02:00</lastmod>
     <priority>0</priority>
   </url>