CK II - Imperial administration law gives +15 vassal limit, not the +25 listed

[Sakkura]

One line summary of your issue
Imperial administration law gives +15 vassal limit, not the +25 listed

Game Version
3.3.0 XDSW

What expansions do you have installed?
Jade Dragon,
Monks & Mystics,
The Reapers Due,
Conclave,
Horse Lords,
Way of Life,
Charlemagne,
Rajas of India,
Sons of Abraham,
The Old Gods,
The Republic,
Legacy of Rome,
Sword of Islam,
Holy Fury, All of the above

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
Enacting the Imperial Administration law increases vassal limit by +15, but the tooltip on the law says it should increase vassal limit by +25.

Steps to reproduce the issue.
Check vassal limit, enact the Imperial Administration law, check vassal limit again.

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[Spaninq]

The vassal limit from all your laws are combined in the 2nd tooltip. Since Max Centralization reduces your vassal limit by 10, and you didn't show your centralization law in either picture (although having a personal demesne cap of 11 is pretty telling in this case), I can only assume that you currently have both Imperial Administration and Maximum Centralization.

 

[Sakkura]

The vassal limit from all your laws are combined in the 2nd tooltip. Since Max Centralization reduces your vassal limit by 10, and you didn't show your centralization law in either picture (although having a personal demesne cap of 11 is pretty telling in this case), I can only assume that you currently have both Imperial Administration and Maximum Centralization.

Nah, medium centralization. But I think I know what it is now - implementing Imperial Administration also somehow automatically implements duchy viceroyalties, which reduces vassal limit by 10.