Custom Rules break Second Cascading Lists

[AlfredoDinunzioTR]

We have a cascading list setup for 4 fields:

Product
ProductEntity

Product2
ProductEntity2

Without any Custom Rules setup for the Work Item Type, both cascading lists work perfectly fine!
We then add a custom rule to make a third field (Database ID) required if Product 1 is set to a specific value. Cascading list still works fine.
As soon as we add custom rules to make the third field required (database id) when Product 2 is selected, the cascading list completely breaks and you see all values. If we disable the rule, it works again.

any ideas to why rules are breaking the lists and what can be done about it?

[RCampioni]

Hello there,
I am having similar issues with Rules. There is a field "Division' and some Rules related to it (set a field value and set assigned to). After 3rd rule is enabled, the cascading fields (the dependent one) stops woking. I tried to copy the value of the the field "Division" to a hidden field "valueDivision", but that does not resolve fine due to the rules precedences.
Looking forward for a solution.