Was the menu order the only thing that got reset, or did you also lose other admin menu settings (if any)? If all of the plugin settings were reset, that probably means the settings data in the database got corrupted.
This can happen if the migration tool doesn’t know how to properly edit PHP serialized data. For example, if it does a simple search & replace on the wp_options table to replace the old site URL with the new one, and it doesn’t update the stored string length while doing this, it can cause PHP to discard the data as invalid.
If you’re making any changes to the database while migrating it, please make sure that the tool you’re using knows how to handle serialized data.
That clarifies a lot actually, wow. It was done manually and did indeed overlook the implications for serialized Thank you so much!
