diff --git a/Chambers.cat b/Chambers.cat
index 0e4e2e7..742df7f 100644
--- a/Chambers.cat
+++ b/Chambers.cat
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<catalogue id="03ba-1559-2f9f-066f" name="The Chambers" revision="20" battleScribeVersion="2.03" authorName="Jonny Hjorter" authorContact="f28.bsdev@greyport.net" authorUrl="https://github.com/BSData/f28/wiki" library="false" gameSystemId="7558-af3d-5eb8-db9c" gameSystemRevision="53" xmlns="http://www.battlescribe.net/schema/catalogueSchema">
+<catalogue id="03ba-1559-2f9f-066f" name="The Chambers" revision="21" battleScribeVersion="2.03" authorName="Jonny Hjorter" authorContact="f28.bsdev@greyport.net" authorUrl="https://github.com/BSData/f28/wiki" library="false" gameSystemId="7558-af3d-5eb8-db9c" gameSystemRevision="41" xmlns="http://www.battlescribe.net/schema/catalogueSchema">
   <readme>Force generation
 
 The lists are divided into three unit categories; Command, Core and Special. When generating forces players must include:
@@ -1688,7 +1688,7 @@ FP: Faction Points</readme>
         </modifier>
         <modifier type="set" field="hidden" value="true">
           <conditions>
-            <condition field="selections" scope="roster" value="0.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="1630-2b77-57f7-1e3e" type="equalTo"/>
+            <condition field="selections" scope="roster" value="1.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="1630-2b77-57f7-1e3e" type="equalTo"/>
           </conditions>
         </modifier>
       </modifiers>
@@ -4954,7 +4954,7 @@ FP: Faction Points</readme>
         </modifier>
         <modifier type="set" field="hidden" value="true">
           <conditions>
-            <condition field="selections" scope="roster" value="0.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="1630-2b77-57f7-1e3e" type="equalTo"/>
+            <condition field="selections" scope="roster" value="1.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="1630-2b77-57f7-1e3e" type="equalTo"/>
           </conditions>
         </modifier>
       </modifiers>
@@ -8199,8 +8199,15 @@ FP: Faction Points</readme>
         <cost name="FP" typeId="9edd-fdb1-a197-a401" value="0.0"/>
       </costs>
     </selectionEntry>
-    <selectionEntry id="1630-2b77-57f7-1e3e" name="Logic Chamber" hidden="false" collective="false" import="true" type="upgrade">
+    <selectionEntry id="1630-2b77-57f7-1e3e" name="Logic Chamber" hidden="true" collective="false" import="true" type="upgrade">
       <comment>Faction Trait</comment>
+      <modifiers>
+        <modifier type="set" field="hidden" value="false">
+          <conditions>
+            <condition field="selections" scope="roster" value="1.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="8cbb-0241-8e2a-f101" type="equalTo"/>
+          </conditions>
+        </modifier>
+      </modifiers>
       <infoLinks>
         <infoLink id="2e82-e6b9-3e2a-317d" name="Logic Chamber" hidden="false" targetId="b507-1421-64a7-e971" type="rule"/>
       </infoLinks>
@@ -8255,13 +8262,18 @@ FP: Faction Points</readme>
         <cost name="FP" typeId="9edd-fdb1-a197-a401" value="0.0"/>
       </costs>
     </selectionEntry>
-    <selectionEntry id="4c34-da2b-5880-295f" name="Logic Chamber free special choice: Chamber Mech" hidden="false" collective="false" import="true" type="upgrade">
+    <selectionEntry id="4c34-da2b-5880-295f" name="Logic Chamber free special choice: Chamber Mech" hidden="true" collective="false" import="true" type="upgrade">
       <modifiers>
         <modifier type="increment" field="8b31-dc76-cc75-04e5" value="1.0">
           <conditions>
             <condition field="selections" scope="roster" value="1.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="1630-2b77-57f7-1e3e" type="equalTo"/>
           </conditions>
         </modifier>
+        <modifier type="set" field="hidden" value="false">
+          <conditions>
+            <condition field="selections" scope="roster" value="1.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" childId="8cbb-0241-8e2a-f101" type="equalTo"/>
+          </conditions>
+        </modifier>
       </modifiers>
       <constraints>
         <constraint field="selections" scope="roster" value="0.0" percentValue="false" shared="true" includeChildSelections="false" includeChildForces="false" id="8b31-dc76-cc75-04e5" type="max"/>