Shortcode not working on “Page” when placed, Spectra One T

Shortcode not working on “Page” when placed in “Reusable block” on Spectra One Theme
We use shortcode to display post list of Plugin: Display Posts (https://wordpress.org/plugins/display-posts-shortcode/).

shortcode of post list set inside Reusable block works fine for “post”, but not working on page (home page of Spectra One. (Note that, shortcode will still work when not set Reusable block)

We hope Spectra One Theme technical team check, fix the error of shortcode not working on “Page” (when shortcode set in Reusable block)