Are you making use of expression textures, or does each character just have a single portrait graphic?
Does this portrait graphic have any animation options set in the character's Inspector?
Though it seems random, there may still be a pattern to the issue. Does this co-incide with mouse clicks, speech tokens, or other characters speaking?
It's hard to say where the issue lies, but if you're not using animation or expressions then AC isn't doing much else besides assigning the sprite to the Image. There are a couple of things you can try, though:
1) Check Duplicate for each line? in the menu's properties
2) Switch your portrait element's Image component for a Raw Image component
Comments
There's no timestamp for the video. At what point does the issue occur?
Let's also see details/screenshots of the Menu that displays the profile picture.
The forum must have removed the time stamp. The flicker happens fairly frequently, but I can see it flicker once at 14:43 and again at around 14:52
Not sure which things about the subtitles menu you want to see but here are the settings you most likely want to see
https://ibb.co/m0LXYK5
https://ibb.co/R9kKTjD
The prefab is just a label and a profile image with another image as a background
This speech menu hasn't changed since the very first game in the series and haven't had an issue with this flickering ever before.
Are you making use of expression textures, or does each character just have a single portrait graphic?
Does this portrait graphic have any animation options set in the character's Inspector?
Though it seems random, there may still be a pattern to the issue. Does this co-incide with mouse clicks, speech tokens, or other characters speaking?
It's hard to say where the issue lies, but if you're not using animation or expressions then AC isn't doing much else besides assigning the sprite to the Image. There are a couple of things you can try, though:
1) Check Duplicate for each line? in the menu's properties
2) Switch your portrait element's Image component for a Raw Image component