Daily purple loot spots for Special Operation - Defiler and Destroyer will not show a purple loot spot sign if available.
There’s another issue.
Special Operation - Destroyer has three difficulty curves and thus three possible daily purple loot spots. There’s no indicator to show which one is available either.
Special Operation: Defiler
Special Operation: Destroyer: T3 (R7-9), T4 (R10-12), T5 (R13-15)