I know it’s been a while since last reply, but maybe someone else will stumble upon this thread and it may help.
In documentation it says you have to put ini in platform-specific folder, it doesn’t work for me. I had to put it directly under Config folder, not platform-specific sub-folder.
As for starting up from plugin, just right-click on the asset and choose copy-reference, don’t forget to delete surronding “Blueprint’ '” around the asset
Blueprint'/PluginName/UBP_Startup.UBP_Startup'
should become:
PluginName/UBP_Startup.UBP_Startup
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