New Mosaic effect adds blur/softens the image
Issue
I’ve experienced some problems with the new Mosaic effect. It’s not only adds the mosaic but also adds a blur that will get the image softer, the bigger the tiles are.
The legacy Mosaic in comparison adds no blur at all.
The reason why I added this as a bug, even when comparing two different effects is because I don’t expect a Mosaic effect to soften the image in the first place, just to pixelate it (the blur is done before the pixelation. That’s my problem with it).
There is a feather amount in the new effect but it only adds more blur and can’t be adjusted to the negative.
Why don’t I just use the legacy version of the effect? As it’s legacy I don’t know for how long it will be supported and the new one has more settings that I would like to use. But the softening that I can’t change is a problem for me.
Steps to reproduce
I did test it with different settings, matching the tile size of both effects roughly.
I also did a test with the tile size really high to show that a blur is added to the image, even when the tiles are so tiny that they shouldn’t change the image at all (like the legacy effect does with high tile size).
Legacy vs New:


Same with fewer tiles:


Comparison with and without effect using high tile settings (expected is roughly the same image/no added blur/softening).
Legacy:


New:


Adobe Premiere Pro version
26.2.2
Operating system
Windows 11
Video format
Different formats (mp4 h264, mov prores 422)