Transitions: Colors are changing / color shift while transition is active

This might be due to multiple reasons: 

1. You're clips are not at 100% opacity (you've reduced opacity to darken your footage)
2. You're on M1 Mac and experiencing a bug in Premiere.
3. You're using a 3rd party color grading effect (Red Giant or similar)

1. Clips are not at 100% opacity

Unfortunately, the Transitions need 100% opacity to achieve the seamless effect. However, if you're reducing the opacity to darken your footage, you can achieve this by using:

• Lumetri color adjustments
  1. Select a clip
  2. Open Lumetri Color panel (Window / Lumetri Color)
  3. Change Basic Correction / Exposure slider
• Solid Composite Effect
  1. Open "Effects" panel (Window / Effects)
  2. Search for "Solid Composite"
  3. Drag it onto your clip
  4. Open "Effect Controls" panel (Window / Effect Controls)
  5. Find "Solid Composite"
  6. Set Color to Black and tweak "Source Opacity"

2. You're on M1 Mac.

You might be experiencing a bug in Premiere. Please, try the solution mentioned in this guide.

3. You're using a 3rd party color grading effect (Red Giant or similar)

All of Mister Horse transitions are created using native Premiere Pro effects & clips. Unfortunately, some 3rd party effects might not work well with Premiere's build-in effects and you might need to use Lumetri color instead. 

However, please try to add the color effects on an adjustment layer above or below our transition. One of the options might work. Here is how to use adjustment layers: