[Help] Issues with Inefficient Planet Management

[SarcFa]

So I'm in the process of finishing up a mod where a modded prescripted empire has completely unique buildings from the others races. One of these buildings has the effect of increasing the core planet cap, however when I go over 5 planets, even though I can have more according to the UI display, eventually I get hit with inefficient planet management.

Code of building:

Spoiler

building_core_hive = {
base_buildtime = 500
planet_unique = yes

potential = {
any_country = { has_country_flag = noiak }
}

cost = {
minerals = 500
}

country_modifier = {
country_core_sector_planet_cap = 1
}

allow = {
custom_tooltip = {
text = "requires_building_capital_1"
planet = {
OR = {
has_building = "building_capital_1"
has_building = "building_capital_2"
has_building = "building_capital_3"
}
}
}
}
}

Screenshots of it working as intended without inefficient planet management at first:

Spoiler

Screenshot of it hitting me with inefficient planet management after a while:

Spoiler

Any help would be appreciated.