Round line ends fit in different angles:
If you have a closed triangle you can move one of its anchor points. The lines follow. Round corners should be used for non-peaky look.
Grey and green triangles were originally equal. The top corner anchor point of the green triangle is moved upwards.
Scaling (=dragging the top side of the bounding box) does the ...
It is not possible to have one path on two layers.
If you need two layers, then there are no options to join two paths. You need to either keep the two paths as separate objects, or merge to a single layer. Those are really the only options possible.
Your timeline resolution is most likely not set to full. This renders the video preview at less than 100% for performance purposes. If you set the timeline resolution to Full, scrubbing through the timeline may lag depending on your file and your computer hardware.
You can read more about the resolutions options on Adobe's help page
Auto: (available only ...
Download the Lottie extension for AEFX
Setup a comp
Open the Lottie extension and render your comp
Go to Preview in the Lottie extension window and select your render
Seek through the animation and Take Snapshot of the frames you want to save
The exported snapshots are in SVG!
Make sure you switch off the (little) Shy icon in the timeline, and search for your layer in the full list of layers, if the shape FILL still didn't appear in the contents of the the shape layer, then you'll have to add it, same way you add a text animator.
Last thing to check is the expression, click 'e' twice when the layer selected, and check your ...