diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index c2e17e602..031fe5da3 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -195,6 +195,10 @@ COPY \
     settings.json \
     /home/wekan/app/
 
+COPY \
+    tests \
+    /home/wekan/app/tests/
+
 COPY \
     packages \
     /home/wekan/app/packages/
@@ -226,6 +230,19 @@ RUN \
     chmod u+w package.json npm-shrinkwrap.json && \
     npm install
 
+USER root
+# Cleanup
+RUN \
+    set -o xtrace && \
+    apt-get clean -y && \
+    apt-get autoremove -y && \
+    rm -Rf /tmp* && \
+    rm -Rf /home/wekan/app_build && \
+    rm -Rf /var/cache/apt /var/lib/apt/lists && \
+    rm -Rf /var/lib/apt/lists/*
+
+USER wekan
+
 ENV PORT=3000
 EXPOSE $PORT
 WORKDIR /home/wekan/app
diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
index d1e91b858..af38558c0 100644
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -12,9 +12,10 @@ services:
     expose:
       - 27017
     volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
       - ./volumes/wekan-db:/data/db
       - ./volumes/wekan-db-dump:/dump
-      - /etc/localtime:/etc/localtime:ro
 
   wekan-dev:
     container_name: wekan-dev-app
@@ -36,13 +37,14 @@ services:
     depends_on:
       - wekandb-dev
     volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
       - ../client:/home/wekan/app/client
       - ../models:/home/wekan/app/models
       - ../config:/home/wekan/app/config
       - ../i18n:/home/wekan/app/i18n
       - ../server:/home/wekan/app/server
       - ../public:/home/wekan/app/public
-      - /etc/localtime:/etc/localtime:ro
 
 volumes:
   wekan-dev-db:
diff --git a/client/components/boards/boardBody.js b/client/components/boards/boardBody.js
index b0a9e2050..0195bb545 100644
--- a/client/components/boards/boardBody.js
+++ b/client/components/boards/boardBody.js
@@ -216,7 +216,7 @@ BlazeComponent.extendComponent({
       $swimlanesDom.sortable(
         'option',
         'disabled',
-        !Meteor.user().isBoardAdmin(),
+        !Meteor.user() || !Meteor.user().isBoardAdmin(),
       );
     });
 
diff --git a/client/components/lists/listBody.js b/client/components/lists/listBody.js
index f29ba74ca..fcd28b644 100644
--- a/client/components/lists/listBody.js
+++ b/client/components/lists/listBody.js
@@ -789,17 +789,12 @@ BlazeComponent.extendComponent({
       return false;
     }
 
+    const spinnerViewPosition = this.spinner.offsetTop - this.container.offsetTop + this.spinner.clientHeight;
+
     const parentViewHeight = this.container.clientHeight;
     const bottomViewPosition = this.container.scrollTop + parentViewHeight;
 
-    let spinnerOffsetTop = this.spinner.offsetTop;
-
-    const addCard = $(this.container).find("a.open-minicard-composer").first()[0];
-    if (addCard !== undefined) {
-      spinnerOffsetTop -= addCard.clientHeight;
-    }
-
-    return bottomViewPosition > spinnerOffsetTop;
+    return bottomViewPosition > spinnerViewPosition;
   }
 
   getSkSpinnerName() {
diff --git a/client/components/swimlanes/swimlanes.js b/client/components/swimlanes/swimlanes.js
index 6d72fbfef..b6fe744b5 100644
--- a/client/components/swimlanes/swimlanes.js
+++ b/client/components/swimlanes/swimlanes.js
@@ -123,7 +123,7 @@ function initSortable(boardComponent, $listsDom) {
         'disabled',
         // Disable drag-dropping when user is not member/is worker
         //!userIsMember() || Meteor.user().isWorker(),
-        !Meteor.user().isBoardAdmin(),
+        !Meteor.user() || !Meteor.user().isBoardAdmin(),
         // Not disable drag-dropping while in multi-selection mode
         // MultiSelection.isActive() || !userIsMember(),
       );
diff --git a/docker-compose.yml b/docker-compose.yml
index ce0b47677..9d92b5321 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -111,6 +111,8 @@ services:
     expose:
       - 27017
     volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
       - wekan-db:/data/db
       - wekan-db-dump:/dump
 
@@ -657,6 +659,9 @@ services:
       #---------------------------------------------------------------------
     depends_on:
       - wekandb
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /etc/timezone:/etc/timezone:ro
 
 #---------------------------------------------------------------------------------
 # ==== OPTIONAL: SHARE DATABASE TO OFFICE LAN AND REMOTE VPN ====