Form put here, reposted in bug thread so a solution could be given or file location of them provided.
Just to add the potential causes for the problem:
Event-specific maps are disabled after the event and make the preset using them unplayable.
My presets with event-specific maps were all greyed out, I really hope we could have the ability to change / see the preset settings just to fix / re-create the preset.
Waiting for a year for a preset to be enabled again is too long for us. T_T