Why are only part of the trajectory left after I use the -as parameter?

[TwooSix]

Hello! Thanks for such a great work.
If I use this command:
evo_traj tum vio.csv --ref=new_archaeo_colmap_traj_sequence_09_timestamp.txt -p
I can get 2 trajectory like this:

And after using the -as parameter to align two trajectory, it looks like this

I wonder know the reason and if I can fix it?
Here is the origin data.
new_archaeo_colmap_traj_sequence_09_timestamp.txt
vio.csv

[TwooSix]

Maybe the timestamp's problem