Character portrait disappears until another character talks if I spam skip #9
Description
The problem
We have a long dialogue in our game and I was experimenting with something when I realized if I keep skipping the dialogue too quickly, the character portrait disappears until another person comes up to talk.
Describe the bug
We're using the Default animation setting on every Character Leave and Join command, without waiting for either. I'm suspecting that could be the issue, and the console also prints "No animation found with name: [Default]" whenever the portrait doesn't come up. It also feels like this only occurs whenever I skip so that the displayed text ends, and doesn't start yet/is about to start showing up.
I noticed the previous actor's portrait is in the middle of fading out when the other comes up while I'm skipping quickly, that's also a potential culprit.
To Reproduce
Create a dialogue where you have two actors, with only either being visible during any of the lines.
Skip rapidly and stop after x amount of texts got displayed.
Expected behavior
The current actor's portrait doesn't show.
Screenshots
This is how a character transition is set up for us, if that helps at all: 
System (please complete the following information):
- OS: Windows
- Godot Version: 3.5.1
- Dialogic Version: 1.4.2
Solutions
Workaround
In DialogicAnimaResources.gd's get_animation_script function, I tried to set the animation from [Default] to the one that was printed every other time (fade_in_up.gd or something similar), but that didn't work.
Possible fixes
The animation tweens could be having some interference issue, I didn't dig too deep into the plugin code, but that's my only assumption.