AMP for WP not working in DevMode

Can you please provide us the export of your AMP options panel by following this – https://ampforwp.com/tutorials/article/how-to-import-and-export-the-amp-option-panel-settings/ and we will import it once and help you fix it.

Can you please enable custom post types in AMP option panel>Settings>General and add custom post types that you are using and check it once.

For reference please follow this tutorial: https://ampforwp.com/tutorials/article/enable-custom-post-type-support-amp/.