Ultimatte 12 4K Media Assignment

Currently trying to build a garbage matte in Photoshop and Illustrator using the file types listed on page 32 of the Ultimatte manual (TGA, TIF, BMP) but am unable to assign my file to the garbage matte input in the media pool/media assignment menu.

My Ultimatte 12 4K workflow is 1080p29.97 and I understand that all inputs must match that resolution. My Photoshop and Illustrator artboards are both 1920 x1080, I am exporting my projects as grayscale, and I am able to upload my files via the "Settings" tab, "Media" -> "Media Setup" > "Add Media" buttons to the selected Ultimatte 12 4K using the Smart Remote 4. However, once I enter the "Assignment" tab and select my TGA/TIF/BMP file from my flashdrive, I get a message that says "Mismatched Formats. The image format must match the video format of 1920 x 1080." I'm confused because I am certain that the file I've uploaded and am trying to assign is in fact 1920 x1080.

At the moment my Ultimatte 12 4K is running 2.0.3 and my Smart Remote 4 is running 2.0.2

I think I've figured it out. I am able to create mattes in Photoshop as .tif files and both upload and assign them to my Ultimatte garbage matte and holdout matte.

My current setup is
3 Ultimatte 12 4K units in 1080p24 running version 2.1
1 Smart Remote 4 running version 2.1

I started by making a Photoshop project with these settings:

Photoshop Project Settings.png (1018.74 KiB) Viewed 112 times

I'm not sure what about these settings is important since I'm not a Photoshop user and I ended up making some adjustments before I exported anyways but I'm just going to list the steps I took to make this process work.

I had my resident Photoshop expert help me build the black and white mattes based on whatever background, foreground, or holdout layer object I wanted "cut out". Once we got our file to look like the black and white matte, I hit "Image" (in the taskbar) -> "Mode" -> "Grayscale" and went ahead and followed the prompts. Next, I hit "Image" -> "Image Size" and input these settings:

Image Size.png (430.89 KiB) Viewed 112 times

I have a suspicion that the resolution 300 ppi is the culprit for the "Mismatched Formats. The image format must match the video format of 1920 x 1080." error message.

To export, I used "File" -> "Save a Copy" and then made sure I exported a TIFF (.tif) file to my desired location.

From there I was able to upload my files to my specified Ultimatte using the Smart Remote ("Settings" -> "Media" -> "Media Setup" -> "Add Media") and assign them to my Garbage Matte and Holdout Matte inputs ("Settings" -> "Media" -> "Media Setup" -> "Assignment").

Don't forget to activate those Matte Inputs in your "Matte In" tab! I hope this works for you!