@sdetweil Well… we are here again: npm run start errors: [03.04.2021 21:46.00.432] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Error: invalid_grant at createError (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/createError.js:16:15) at settle (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/settle.js:18:12) at IncomingMessage.handleStreamEnd (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/adapters/http.js:202:11) at IncomingMessage.emit (events.js:327:22) at endReadableNT (_stream_readable.js:1220:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) [03.04.2021 21:46.00.435] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2) [03.04.2021 21:46.00.439] [ERROR] (node:2588) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code. [03.04.2021 21:47.03.919] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Error: invalid_grant at createError (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/createError.js:16:15) at settle (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/settle.js:18:12) at IncomingMessage.handleStreamEnd (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/adapters/http.js:202:11) at IncomingMessage.emit (events.js:327:22) at endReadableNT (_stream_readable.js:1220:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) [03.04.2021 21:47.03.922] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 4) [03.04.2021 21:47.59.391] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Error: invalid_grant at createError (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/createError.js:16:15) at settle (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/core/settle.js:18:12) at IncomingMessage.handleStreamEnd (/home/pi/MagicMirror/modules/MMM-GooglePhotos/node_modules/google-auth-library/node_modules/axios/lib/adapters/http.js:202:11) at IncomingMessage.emit (events.js:327:22) at endReadableNT (_stream_readable.js:1220:12) at processTicksAndRejections (internal/process/task_queues.js:84:21) [03.04.2021 21:47.59.392] [ERROR] (node:2588) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 6) developers window: Load script: modules/MMM-GoogleAssistant/MMM-GoogleAssistant.js module.js:508 Check MagicMirror version for module 'MMM-GoogleAssistant' - Minimum version: 2.14.0 - Current version: 2.15.0 module.js:516 Module registered: MMM-GoogleAssistant loader.js:157 Bootstrapping module: MMM-GoogleAssistant loader.js:185 Load script: /modules/MMM-GoogleAssistant/components/response.js loader.js:162 Scripts loaded for: MMM-GoogleAssistant loader.js:204 Load stylesheet: /modules/MMM-GoogleAssistant/MMM-GoogleAssistant.css loader.js:164 Styles loaded for: MMM-GoogleAssistant translator.js:107 MMM-GoogleAssistant - Load translation fallback: translations/en.json loader.js:166 Translations loaded for: MMM-GoogleAssistant MMM-Assistant2Display.js:687 [A2D] Found: GoogleAssistant loader.js:185 Load script: modules/MMM-GooglePhotos/MMM-GooglePhotos.js module.js:516 Module registered: MMM-GooglePhotos loader.js:157 Bootstrapping module: MMM-GooglePhotos loader.js:162 Scripts loaded for: MMM-GooglePhotos loader.js:204 Load stylesheet: modules/MMM-GooglePhotos/MMM-GooglePhotos.css loader.js:164 Styles loaded for: MMM-GooglePhotos loader.js:166 Translations loaded for: MMM-GooglePhotos module.js:199 MMM-GoogleAssistant is suspended. module.js:199 MMM-GooglePhotos is suspended. main.js:297 Will not show MMM-GoogleAssistant. LockStrings active: GA_LOCKED main.js:297 I will create a new token Edit: Just deleted token.js, and did again “node generate_token.js”, pasted the code, and everything works again

I solved it by myself. So here for the rest of the world or maybe for myself in a couple of months. The following config is working: { module: 'MMM-BackgroundSlideshow', position: 'fullscreen_below', config: { imagePaths: ['modules/MMM-BackgroundSlideshow/BackgroundImages'], transitionImages: true, transitions: ['opacity'], randomizeImageOrder: true, slideshowSpeed: 500000, gradientDirection: 'both', gradient: [ "rgba(0, 0, 0, 0.00) 0%", "rgba(0, 0, 0, 0.00) 0%", "rgba(0, 0, 0, 0.00) 90%", "rgba(0, 0, 0, 0.75) 100%" ], //von oben nach unten, % = wo im Bildschirm startet es horizontalGradient: [ "rgba(0, 0, 0, 0.75) 0%", "rgba(0, 0, 0, 0) 15%", "rgba(0, 0, 0, 0.00) 85%", "rgba(0, 0, 0, 0.75) 100%" ] //von links nach rechts, % = wo im Bildschirm startet es } }, In addition, you have to change a line in the MMM-BackgroundSlideshow.js file in the getDom function (line 316) OLD: this.createGradientDiv('right', this.config.gradient, wrapper); NEW: this.createGradientDiv('right', this.config.horizontalGradient, wrapper); I will put this on GitHub as well.