diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16e96f3e..7ab0b505 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# 3.1.1
+
+- Version number is now correct in splash and `/health` when running as a node module
+- Fixed an issue with setting `minWorkers` and `maxWorkers` as CLI arguments
+- Fixed issues with page resets between exports causing exceptions
+- Fixed an issue with width settings causing bad exports if set to a percentage or a `px` suffixed width
+- Fixed an issue with SVG exports in the UI
+
 # 3.1.0
 
 - Fixed an issue with SVG base 64 exports
diff --git a/lib/chart.js b/lib/chart.js
index a8e5e645..d2724731 100644
--- a/lib/chart.js
+++ b/lib/chart.js
@@ -203,7 +203,7 @@ export const findChartSize = (options) => {
   scale = roundNumber(scale, 2);
 
   // Find chart size and scale
-  return {
+  const size = {
     height:
       options.export?.height ||
       exporting?.sourceHeight ||
@@ -222,6 +222,13 @@ export const findChartSize = (options) => {
       600,
     scale
   };
+
+  // Get rid of potential px and %
+  for (var [param, value] of Object.entries(size)) {
+    size[param] =
+      typeof value === 'string' ? +value.replace(/px|%/gi, '') : value;
+  }
+  return size;
 };
 
 /**
diff --git a/lib/export.js b/lib/export.js
index c9d02198..45ad250c 100644
--- a/lib/export.js
+++ b/lib/export.js
@@ -57,7 +57,7 @@ const getClipRegion = (page) =>
  * @returns {string} - A string representation of a screenshot.
  */
 const createImage = async (page, type, encoding, clip, rasterizationTimeout) =>
-  await Promise.race([
+  Promise.race([
     page.screenshot({
       type,
       encoding,
@@ -67,7 +67,7 @@ const createImage = async (page, type, encoding, clip, rasterizationTimeout) =>
       // the expected type format is PNG
       omitBackground: type == 'png'
     }),
-    new Promise((resolve, reject) =>
+    new Promise((_resolve, reject) =>
       setTimeout(
         () => reject(new Error('Rasterization timeout')),
         rasterizationTimeout || 1500
@@ -425,16 +425,20 @@ export default async (page, chart, options) => {
 
     // Destroy old charts after the export is done
     await page.evaluate(() => {
-      // eslint-disable-next-line no-undef
-      const oldCharts = Highcharts.charts;
-
-      // Check in any already existing charts
-      if (oldCharts.length) {
-        // Destroy old charts
-        for (const oldChart of oldCharts) {
-          oldChart && oldChart.destroy();
-          // eslint-disable-next-line no-undef
-          Highcharts.charts.shift();
+      // We are not guaranteed that Highcharts is loaded, e,g, when doing SVG
+      // exports
+      if (typeof Highcharts !== 'undefined') {
+        // eslint-disable-next-line no-undef
+        const oldCharts = Highcharts.charts;
+
+        // Check in any already existing charts
+        if (Array.isArray(oldCharts) && oldCharts.length) {
+          // Destroy old charts
+          for (const oldChart of oldCharts) {
+            oldChart && oldChart.destroy();
+            // eslint-disable-next-line no-undef
+            Highcharts.charts.shift();
+          }
         }
       }
     });
diff --git a/lib/pool.js b/lib/pool.js
index 9c970a2e..f8cbd307 100644
--- a/lib/pool.js
+++ b/lib/pool.js
@@ -101,7 +101,7 @@ const factory = {
     }
 
     // Clear page
-    await clearPage(workerHandle.page, false);
+    await clearPage(workerHandle.page, true);
     return true;
   },
 
@@ -161,13 +161,17 @@ export const init = async (config) => {
     attachProcessExitListeners();
   }
 
+  if (parseInt(poolConfig.minWorkers) > parseInt(poolConfig.maxWorkers)) {
+    poolConfig.minWorkers = poolConfig.maxWorkers;
+  }
+
   try {
     // Create a pool along with a minimal number of resources
     pool = new Pool({
       // Get the create/validate/destroy/log functions
       ...factory,
-      min: poolConfig.minWorkers,
-      max: poolConfig.maxWorkers,
+      min: parseInt(poolConfig.minWorkers),
+      max: parseInt(poolConfig.maxWorkers),
       acquireTimeoutMillis: poolConfig.acquireTimeout,
       createTimeoutMillis: poolConfig.createTimeout,
       destroyTimeoutMillis: poolConfig.destroyTimeout,
diff --git a/lib/server/routes/health.js b/lib/server/routes/health.js
index 52ff3e24..2c8e61bb 100644
--- a/lib/server/routes/health.js
+++ b/lib/server/routes/health.js
@@ -15,7 +15,14 @@ See LICENSE file in root for details.
 import cache from '../../cache.js';
 import pool from '../../pool.js';
 
-const packageVersion = process.env.npm_package_version;
+import { readFileSync } from 'fs';
+import { __dirname } from './../../utils.js';
+import { join as pather } from 'path';
+
+const pkgFile = JSON.parse(
+    readFileSync(pather(__dirname, 'package.json'))
+  );
+
 const serverStartTime = new Date();
 
 /**
@@ -32,7 +39,7 @@ export default (app) =>
             Math.floor(
               (new Date().getTime() - serverStartTime.getTime()) / 1000 / 60
             ) + ' minutes',
-          version: packageVersion,
+          version: pkgFile.version,
           highchartsVersion: cache.version(),
           averageProcessingTime: pool.averageTime(),
           performedExports: pool.processedWorkCount(),
diff --git a/lib/utils.js b/lib/utils.js
index 7a5922de..d391ddd2 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -14,6 +14,7 @@ See LICENSE file in root for details.
 
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
+import { join as pather } from 'path';
 
 import { defaultConfig } from '../lib/schemas/config.js';
 import { log } from './logger.js';
@@ -280,10 +281,9 @@ export const optionsStringify = (options, allowFunctions) => {
  */
 export const printLogo = (noLogo) => {
   // Get package version either from env or from package.json
-  const packageVersion =
-    process.env.npm_package_version ||
-    JSON.parse(readFileSync(new URL('../package.json', import.meta.url)))
-      .version;
+  const packageVersion = JSON.parse(
+    readFileSync(pather(__dirname, 'package.json'))
+  ).version;
 
   // Print text only
   if (noLogo) {
diff --git a/package.json b/package.json
index e05009c3..c6e5b674 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "author": "Highsoft AS <support@highcharts.com> (http://www.highcharts.com/about)",
   "license": "MIT",
   "type": "module",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "main": "dist/index.esm.js",
   "exports": {
     ".": {
diff --git a/public/js/main.js b/public/js/main.js
index f29cdedc..374b9875 100644
--- a/public/js/main.js
+++ b/public/js/main.js
@@ -68,7 +68,8 @@ const highexp = {};
             preview.innerHTML =
               '<img src="data:' + format.value + ';base64,' + data + '"/>';
           } else if (format.value === 'image/svg+xml') {
-            preview.innerHTML = data;
+            preview.innerHTML =
+              '<img src="data:image/svg+xml;base64,' + data + '"/>';
           } else if (format.value === 'application/pdf') {
             preview.innerHTML = '';
             try {