Escha/Reisenjima Level Cap Status Bug

Platform: Windows
ISP: Verizon
Type of Internet Connection: Fiber
Internet Connection Speed: 100mb
Date & Time: 6/30/2019 @ 2:07pm
Frequency: Occasionally
Character Name: Schmutz
Race: Elvaan
World: Carbuncle
Main Job: Blue Mage
Support Job: Rune Fencer
Area and Coordinates: Escha-Zi'Tah
Party or Solo: Solo, but with another player in the instance.
NPC Name:
Monster Name: Azi Dahaka
Steps:
1. Fight monster.
2. Monster "Falls to the ground" via Dia instead of via player direct attack.
3. Level cap status is lost before monster dies, resulting in no spoils.

The same bug also occurred last night while our Linkshell was in Reisenjima fighting Teles for Aeonic progress.