A set_clock_groups or a set_false_path between clocks <clock_name> and <clock_name>
overrides a set_max_delay -datapath_only (see constraint
position <#> in the Timing
Constraints window in the Vivado IDE). It is not recommended to override a set_max_delay -datapath_only constraint. Replace the set_clock_groups or set_false_path between clocks with point-to-point set_false_path constraints.