- Edited
2borg
You're right, there was changes in the database and these 2 conditional fields have parent_id set to 0 which caused issue.
Here are steps:
1- Go to database of your site - php-MyAdmin > SQL > run this query:
SELECT `id` FROM `XYZ_dtregister_fields` WHERE `title` = 'root'
(XYZ is the prefix of your site's database)
Then you can see the root ID
2- Run another SQL query:
update XYZ_dtregister_fields set parent_id = "ID_You_See_In_Step_1" where parent_id = 0 and `title` <> "root"
3- Go to Backend > DT Register > Field management > click the 'Rebuild' button for that field: https://prnt.sc/n7s3z7
4- Check the conditional field again.
Regards