diff --git a/src/static/scripts/datatables.css b/src/static/scripts/datatables.css
index d91ea601..e518c143 100644
--- a/src/static/scripts/datatables.css
+++ b/src/static/scripts/datatables.css
@@ -4,10 +4,10 @@
  *
  * To rebuild or modify this file with the latest versions of the included
  * software please visit:
- *   https://datatables.net/download/#bs5/dt-2.3.7
+ *   https://datatables.net/download/#bs5/dt-2.3.8
  *
  * Included libraries:
- *   DataTables 2.3.7
+ *   DataTables 2.3.8
  */
 
 :root {
diff --git a/src/static/scripts/datatables.js b/src/static/scripts/datatables.js
index 9c7fa042..c9f9ea56 100644
--- a/src/static/scripts/datatables.js
+++ b/src/static/scripts/datatables.js
@@ -4,13 +4,13 @@
  *
  * To rebuild or modify this file with the latest versions of the included
  * software please visit:
- *   https://datatables.net/download/#bs5/dt-2.3.7
+ *   https://datatables.net/download/#bs5/dt-2.3.8
  *
  * Included libraries:
- *   DataTables 2.3.7
+ *   DataTables 2.3.8
  */
 
-/*! DataTables 2.3.7
+/*! DataTables 2.3.8
  * © SpryMedia Ltd - datatables.net/license
  */
 
@@ -525,7 +525,7 @@
 		 *
 		 *  @type string
 		 */
-		builder: "bs5/dt-2.3.7",
+		builder: "bs5/dt-2.3.8",
 	
 		/**
 		 * Buttons. For use with the Buttons extension for DataTables. This is
@@ -3607,6 +3607,11 @@
 		if ( holdPosition !== true ) {
 			settings._iDisplayStart = 0;
 		}
+		else {
+			// Keep position, but make sure that there is actually data to display,
+			// otherwise we need to rewind a bit (e.g. if rows were deleted)
+			_fnLengthOverflow(settings);
+		}
 	
 		// Let any modules know about the draw hold position state (used by
 		// scrolling internally)
@@ -4920,6 +4925,12 @@
 	
 		var args = [settings, settings.json];
 	
+		// If the footer element is empty after initialisation, then remove it
+		let tfoot = $(settings.tfoot);
+		if (tfoot.children().length === 0) {
+			tfoot.remove();
+		}
+	
 		settings._bInitComplete = true;
 	
 		// Table is fully set up and we have data, so calculate the
@@ -5376,12 +5387,12 @@
 		// the content of the cell so that the width applied to the header and body
 		// both match, but we want to hide it completely.
 		$('th, td', headerCopy).each(function () {
-			$(this.childNodes).wrapAll('<div class="dt-scroll-sizing">');
+			$(this.childNodes).wrapAll('<div class="dt-scroll-sizing" />');
 		});
 	
 		if ( footer ) {
 			$('th, td', footerCopy).each(function () {
-				$(this.childNodes).wrapAll('<div class="dt-scroll-sizing">');
+				$(this.childNodes).wrapAll('<div class="dt-scroll-sizing" />');
 			});
 		}
 	
@@ -5409,6 +5420,10 @@
 		// Correct DOM ordering for colgroup - comes before the thead
 		table.children('colgroup').prependTo(table);
 	
+		// Remove tabindex from the hidden row elements
+		table.find('thead, tfoot').find('[tabindex]').removeAttr('tabindex');
+		table.find('thead, tfoot').find('role').removeAttr('role');
+	
 		// Adjust the position of the header in case we loose the y-scrollbar
 		divBody.trigger('scroll');
 	
@@ -5732,8 +5747,12 @@
 					.replace(/id=".*?"/g, '')
 					.replace(/name=".*?"/g, '');
 	
-				// Don't want Javascript at all in these calculation cells.
-				cellString = cellString.replace(/<script.*?<\/script>/gi, ' ');
+				// Don't want script, dialog or template tags in the width
+				// calculations as they are hidden content
+				cellString = cellString
+					.replace(/<script[\s\S]*?<\/script>/gi, ' ')
+					.replace(/<dialog[\s\S]*?<\/dialog>/gi, ' ')
+					.replace(/<template[\s\S]*?<\/template>/gi, ' ');
 	
 				var noHtml = _stripHtml(cellString, ' ')
 					.replace( /&nbsp;/g, ' ' );
@@ -10304,7 +10323,7 @@
 	 *  @type string
 	 *  @default Version number
 	 */
-	DataTable.version = "2.3.7";
+	DataTable.version = "2.3.8";
 	
 	/**
 	 * Private data store, containing all of the settings objects that are
@@ -12586,6 +12605,7 @@
 	var __mlWarning = false;
 	var __luxon; // Can be assigned in DateTable.use()
 	var __moment; // Can be assigned in DateTable.use()
+	var __reIsoTimezone = /[T\s]\d{2}.*?(Z|[+-]\d{2}(?::?\d{2})?)$/;
 	
 	/**
 	 * 
@@ -12606,7 +12626,7 @@
 		resolveWindowLibs();
 	
 		if (__moment) {
-			dt = __moment.utc( d, format, locale, true );
+			dt = __moment( d, format, locale, true );
 	
 			if (! dt.isValid()) {
 				return null;
@@ -12716,6 +12736,16 @@
 					return d;
 				}
 	
+				// Determine if there is a timezone. If there is, we want to reuse
+				// it for the output, so the timezone doesn't change between the
+				// input and output.
+				let options = {};
+				let tzMatch = typeof d === 'string' ? d.match(__reIsoTimezone) : null;
+	
+				if (tzMatch) {
+					options.timeZone = tzMatch[1] === 'Z' ? 'UTC' : tzMatch[1];
+				}
+	
 				var dt = __mldObj(d, from, locale);
 	
 				if (dt === null) {
@@ -12729,7 +12759,7 @@
 				var formatted = to === null
 					? __mld(dt, 'toDate', 'toJSDate', '')[localeString](
 						navigator.language,
-						{ timeZone: "UTC" }
+						options
 					)
 					: __mld(dt, 'format', 'toFormat', 'toISOString', to);