Error always comes in the graphics GUI when I want to insert an icon

Linux

Wappler 5.1.1 / Node Docker

Error always comes in the graphics GUI when I want to insert an icon, when I switch from View Design to Code View then it works again

Here the Error from Console

TypeError: Cannot set properties of null (setting ‘_callback’) at r.sendCallback (file:///usr/share/wappler/resources/app/Shared/DMXzone/dmxAppCreator/UI/wappler_editor_design.js:8:13322) at r.command_iconsContext (file:///usr/share/wappler/resources/app/Shared/DMXzone/dmxAppCreator/UI/wappler_editor_design.js:8:29662) at r.onMessage (file:///usr/share/wappler/resources/app/Shared/DMXzone/dmxAppCreator/UI/wappler_editor_design.js:8:11025) at WebViewElement.sentryWrapped (/usr/share/wappler/resources/app/node_modules/@sentry/browser/dist/helpers.js:75:23) at WebViewImpl.dispatchEvent (node:electron/js2c/renderer_init:109:1997) at EventEmitter. (node:electron/js2c/renderer_init:97:862) at EventEmitter.emit (node:events:390:28) at Object.onMessage (node:electron/js2c/renderer_init:69:746)