I've been looking over the spell lists on my wizard and sorcerer, and have noticed several spells currently are affected by metamagic feats which do nothing for said spells:
LV3
Halt Undead: Currently affected by Maximize. This issue has been resolved.
LV4
Shout: Currently affected by Eschew Materials (no material component listed).
Burning Blood: Currently affected by Heighten. This issue has been resolved.
LV5
Dismissal: Currently affected by Heighten (Spell DC is not modified to match Heightened Spell Level). Possible UI Error. Further testing required.
Niac's Biting Cold: Currently affected by Heighten. This issue has been resolved.
Eladar’s Electric Surge: Currently affected by Heighten. This issue has been resolved.
LV7
Banishment: Currently affected by Heighten (Spell DC is not modified to match Heightened Spell Level). Possible UI Error. Further testing required.
Other issues:
Ray of Exhaustion: No save listed, despite description stating "a successful fortitude save means the creature is only fatigued." Is affected by Heighten.
I am fairly certain this is not a complete list, so if anyone finds additional issues, I'll do my best to add them.
Thanks to Geonis, Mr.Delightful, and Shade for their assistance.