No "Magic Burst" message when casting Sleep+Stymie on Apex Draugar during magic burst

Platform: Windows II Pro
ISP: AT&T
Type of Internet Connection: Fiber Optic
Internet Connection Speed: 1000mbs
Date & Time: Feb. 25, 2024 19:12 PST
Frequency: Always
Character Name: Argisto
Race: HumeM
World: Odin
Main Job: Red Mage, Lv.99
Support Job: Ninja, Lv.49
Area and Coordinates: Ra'Kaznar Inner Court, F-2
Party or Solo: Party and Solo
NPC Name: None
Monster Name: Apex Draugar
Steps:
1. Engage battle with Apex Draugar with a party or solo in Ra'Kaznar Inner Court, F-2.
2. Using Weapon Skills Requiescat > Chant du Cygne, perform Darkness Skillchain on Apex Draugar
3. Red Mage uses Stymie job ability and casts the spell "Sleep" during magic burst window on the Apex Draugar with no Immunobreak (it is important that there are no Immunobreaks for Sleep).
4. Spell "Sleep" will take effect with message "Argisto casts Sleep. The Apex Draugar is asleep." but there is no message for "Magic Burst" as expected when landing the spell "Sleep" during magic burst window with no Immunobreak.