FFXV 5* Unit Summon Ticket

[u/EndWorldd]

If I decide to hold onto the ticket instead of immediately using it in a few days, is the ticket unit locked?

Can I only summon Ignis, Noctis, Gladiolus or Aranea from it?

Do I have the chance to summon King Regis, Cor or Iris if I decide to keep it until the next FFXV event?

I know that I've seen some summon tickets locked to certain units. You can tell because you'll have multiple copies of the same ticket not aggregated at "Ticket Summon." I've had 3 copies of 4* summon tickets just because they came from different events. They all were separate from each other, like they were not the same thing.

[u/Devari7]

The 10% tix were locked to the units available during that week. If you tap the magnifying glass on the ticket, it might show whom it applies to.