Form Many-to-many relationship

Hello,

I have a form with a field (yes/no) Checkbox that will “Reload form when value has changed”
if i change the yes/no field so an other field named “BusinessContactID” will displayed. in this moment an other Many-to-many relationship field with Lookup Object type “Checkbox” will lost all the entries, why?

this does not happen with the Lookup Object type “Double Select” selected in the many to many field!

You may have to use isset($variable) to protect the variables you set, so that when the reload occurs the other variable do not change

WHERE i have to set this isset? in the many-to-many relationship SQL Select Statement? And why this not happens if i configure as double select field?

SELECT
group_id,
description

FROM Security_groups

WHERE group_id != ‘[global_AdministratorsGroupID]’
ORDER BY description

Same problem here, anyone find a solution to this bug