So, with the release of the new event...the presets seem to...change my unused slots...? When I click any of the preset buttons, my formation does still go into the proper setup, but any slots not being used automatically shift to a seemingly-random crusader in that slot. Always the same crusader in that slot, but I don't see a common theme regarding which sader it is. Sometimes it is the first, sometimes second, etc. My first theory was that maybe, somehow, the game decided to swap those slots to whatever crusader was in them when I saved that formation (which still doesn't make sense since I never use some of the crusaders, but still...) but nope. I try re-setting each slot, then saving the formation again, click the preset, and boom, all unused slots reset to their seemingly-random saders again.

I was having the same problem. A quick refresh fixed it for me. Either that or CNE patched it very quickly.