Hi There

Please could someone help me here - I am trying to include a function in a Validate rule. I have three different condition to validate with combination of "OR" logiv between condition 1 and 2 and "AND" logic after this validation . I am not able to set this combination - when i set the first condition as OR and try adding the second logic condition as "AND" - the first condition changes automatically

 Is it a default behaviour or a bug? Please could someone let me know? screenshot attached

P.S: I was able to make it work with a workaround by adding a when condition for validation condition 1 and 2 but I want to understand more on the product behaviour.