The 05/08/2025 update introduced guardians and walkers fading to transparent when the camera gets too close to them. This introduced a new graphical glitch.
When standing close to a guardian/walker, so it turns transparent, and then parrying the part of the guardian obscured by the parry...
Looking at the post-match "Damage Dealt by Type" graph after playing as Paradox sometimes shows "#citadel_ability_chrono_pulse_grenade_AMP" as one of the damage sources. This is likely a wrong or missing localization string.
Example Match ID: 31761689 (Paradox Damage Dealt by Type)