Are you going through the mod menu, not the single player menu because the SP menu is bugged in my opinion for loading mods especially when you have multiple mods. Just a word of advice. I'm not having that problem when I go the long way.
<!-- This affects AI settler site location selection and advanced settler functions -->
<Update>
<Where Name="MOD_BALANCE_CORE_SETTLER"/>
<Set Value="1"/>
</Update>
/*
Changes to Settler Behavior
1 = Enabled (Default)
0 = Disabled
*/
INSERT INTO COMMUNITY (Type, Value)
VALUES ('COMMUNITY_CORE_BALANCE_SETTLER_TWEAKS', 1);
*/
<Row Class="1" Name="BUGFIX_BUILDINGCLASS_NOT_BUILDING" Value="1"/>
<!-- * Fixes the NumCitiesFreeFoodBuilding (policy finisher) bug where the civilization has a UB for the Aquaduct (v19) -->
<!-- See also: "Unique Building - Turkish Baths" -->
<Row Class="1" Name="BUGFIX_FREE_FOOD_BUILDING" Value="1"/>
<!-- Fixes the research overflow bug/exploit (v52) -->
<!-- See also: "Bugfix - Research Overflow Exploit" -->
<Row Class="1" Name="BUGFIX_RESEARCH_OVERFLOW" Value="1"/>
That minimization bug has been around for years and sadly has destroyed a number of peoples laptops. When minimized, some GPUs used to heat up because frame rate was no longer capped at the screen refresh. Many people lost their laptops. We told Firaxis but it has taken them four years to fix it (because they will have had the money allocated with BE).
Do you know if the DLL has been updated by Firaxis? If it has been, have they also updated the SDK with the code changes? In the past it has been months between the official update and the SDK update which has been very frustrating for modders.
If the DLL has been updated, you won't be getting their changes because this mod will supplant their DLL. The fact that you were getting difficulty changes notified means that this mod's DLL is functioning (not theirs).
I'm reluctant to go back on-line to find out myself if they have updated the SDK.