AEM Page exporter isn't working as expected on project related pages
I am using AEM page exporter to export a page as a complete web page including images, .js and .css files.
I have tried with one page and referred Adobe official document for the same [https://experienceleague.adobe.com/docs/experience-manager-65/administering/contentmanagement/page-exporter.html?lang=en]
Initially I tried to export one we.retail page, the zip file got downloaded and when I extracted that zip file, I have seen below sub folders -

Then I opened the .html file (AEM webpage html and it is available at C:\Users\debal\Downloads\AEM Practice\content\my-project\language-masters\en ) and I could see .html file associated with we.retail webpage was getting loaded with proper styling.
But when I have exported project related webpage via AEM page exporter feature, the zip file got downloaded and when I extracted the zip file, I have seen content, etc, libs subfolders inside that zip file. This time when I opened .html file (project related AEM webpage html) from system, I could see .html file associated with project related webpage was getting loaded with without css styling.
Both the cases I have used default template under: /etc/contentsync/templates/default to export AEM webpage.
In my project we have relevant client libraries under /etc/designs, because of this I was seeing
.html file associated with project related webpage was getting loaded with without css styling.
I have decompiled PageExporterImpl.java and there I can see TEMP_DESIGN_PATH = "/var/designs"
I would like to know why AEM page exporter isn't working as expected for project related webpages.