《三块广告牌》今日加量上映 奥斯卡神作燃爆元宵

Question

I am trying to acheive a key frame animation changing the text "IamInterestedIn" into "IaII". I want this animate by having the extra letters "m","nterested" and "n" to horizontally shrink and vanish, allowing the remaining letters to slide and squish together leaving only "IaII". I am not able to get this keyframe anmiation to be smoothly animated. The animation just jumps imediatly after the forst keyframe to the end state.

Here are the steps to setup the fusion compisation:

1. Make a new project, right click in the Media Pool, click "New Fusion Composition", Name it, I choose frame rate 30fps and extended length to 20 seconds
2. Double click the composition to open it up in fusion
3. Add a "Background Node" and a "Text+ Node", Connect both nodes to a "Merge Node" and then to the "MediaOut Node"
4. Set the text in the Text+ Node to "IamInterestedIn", In the Inspector, under the Text settings I increase the "Size" parameter to make the text bigger
5. Right click on the Text section in the inspector and click "Character Level Styling"
6. Switch to "Modifiers" tab in the Inspector

All these steps get us to what I think is the proper starting point to now attempt to implement the "Text Shrink Animation". My understanding is that I should be able key frame all the letters in "IamInterestedIn" to be full size in the first key frame, and then shrink the extra letters in the second keyframe to only the letters "IaII". I want this shrink animation to take place over a few seconds. Here is how I attempt to get this animation to work

1. Make sure I am at the first key frame position in the timeline
2. I select all the leters in the Text+ node
3. In the Inspector, under Modifiers tab, I click the keyframe rombus next to the text "Right-click Here to Animate Character Level...". My hope is that this creates a first key frame with all the letters being full sized
4. Advance the timeline to the second key frame, In my case I select frame 400
5. I then select the first "m", in the Inspector, under Modifiers tab, I reduce the "size" argument to zero. This seems to shrink the character
6. Repeate step 5 but select the letters "nterested" and the last "n". Dont adjust the keyframe position,
7. The text remaining on the screen should be "IaII" only

Now Playing the animation from the begginging you will see that the text instantly changes from "IamInterestedIn" to "IaII" right after the first key frame. This is not the effect I am looking for, I want the extra letters I tried to keyframe in steps 5 and 6 to slowly shrink and vanish over the time between keyframe 1 and 2 like all other animations work.

I have tried several other ways to get the animation to work properly but I cant get any setup to work properly.

Can someone explain where I have gone wrong and how to achieve this sort of animation?