My understanding was that Master Options in a network setting determine the base set-up for all users. Options then allow users to tweak their individual preferences as necessary. 

From the 2019 Lacerte built-in Help (press F2) "Setting Options on a Network - Master Options allow network administrators to adjust the Options settings for all users. The network administrator can set a password to prevent other users from modifying Master Options. The administrator can also restrict users' rights to adjust their own Options." 

Is this the case? Is there a hierarchy which Options has domain over the other? Do individual user Options override network Master Options?

Yes, all users must exit Lacerte to update Master Options. No one was in the office last night. I updated Master Options, forced specific Forms, and this morning noting. Different PCs have different settings and ultimately different Forms printing with different Copy selections.

I cannot recall prior years being such a quagmire.