Hello there,
To find which scripts are causing the unique id generations, you can go to your file manager -> wp-content->uploads->siteground-optimizer-assets. From there locate the combined scripts that are of the same size. Download them to your local machine and use a terminal to run the following command:
cd path/to/your/files
vimdiff combinedfile1.js combinedfile2.js
After running those commands you will be able to see what is generating the unique ids. You can exclude the scripts after you find the issue causing that.
We have improved the method for the regular assets clean-up and we have also increased the limits for stopping the js combination. After the latest update of the plugin, you should stop experiencing the issue with the JS Combination disabled notice.
However, if you still have any issues in the future, feel free to contact us!
Kind regards,
Stoyan