OH, my bad. I was using Cutout Glow instead of Cutout. And I do see that black bar-like thing. I'll try to tweak the filter a bit, to see if I can get rid of it. Although in the end, it may take someone more skilled than me. But I'll try

Edit
Wow, that was easier than I ever could have imagined, lol! Here's what I did:
- select the text
- Filters menu > Filter Editor
- in the list of Effects, click on Offset to select it
- look to the bottom of the dialog at Effect Parameters tab
- change Delta Y value to 0
It does slightly change the appearance of the filter, but hopefully not too much for you. I do notice that the "I" is darker than the rest, so you could do the same for Delta X. After that I thought, well maybe we don't need the Offset primitive at all. But when I removed it, bad things happened. So probably best to just change those values, and leave the Offset primitive effect in the list
