We also are experiencing this issue after the last update (v5.1.9.1.) Our setup:
3 fields
Field 1. Radio button field set to required with two choices (A,B)
Field 2. Text button field set to required with a conditional to show if radio button choice (field 1) = A
Field 3. Text button field set to required with a conditional to show if radio button choice (field 1) = B
Before the last update, this worked fine. If field 1 was set to A, field 2 would show and field 3’s required option was ignored. With the new update, both field 2 and field 3’s required option seems to be checked regardless of what field 1 is set to (e.g., if field 1 = A, only field 2 is shown but field 3’s required validation is also run.)
Hope this helps,
Rob