I have referred the same, few others are also having the same issue. There is an issue opened on the same - https://github.com/niekraaijmakers/aem-spa-editor-errorpages-example/issues/2 

Yes, It's with SPA behaviour.Make sure that current page URL model json is being called only if it not part of en model json. This is happening when there are two matched :path properties with the current page( one is already in en.model.json and one more call is happening to fetch the items).

This will solve your problem , check them    https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/maven-dependency-when-using-opencsv-unable-to-start-bundle/m-p/364750 https://www.linkedin.com/pulse/how-add-third-party-bundle-you-aem-package-veena-vikraman/ 

Is there any condition added for MapTo Component?

Hi @Ronnie09 ,   Check in Page policy of Template, your react clientlibs category is added or not.Front-End MapTo component is available to the component using for template.  

Hi @kautuk_sahni ,   Issue is not resolved, could you please help us on this

Hi,   I need to export the model json from a sling model conditionally, How to implement this?  

Hi @ahabicher ,   Have you got any solution for redirecting assets?? If so, Could you please share that here

I have followed the AEM SPA Editor Error Page Example | AEM Community Blog Seeding for 404 Error Pages thorugh ACS Common Error Handler. It is working absolutely fine but whenever we add a selector to the wrong path, 404 Error Page content is not rendering but the model.json is loading in Network.  ...

Hi @kautuk_sahni, The 404 page is not rendering when we use a wrong path URL with selectors.  Is there any other approaches to handle this issue??