[No consequences] Error when opening example files

Hi, total noob.
I’m on Ubuntu Studio and have Synfig 1.2.2
I downloaded the example files: synfig-examples.zip

But, when I open some of the files I get the following:

Am I missing something on the OS side?

You probably can ignore these warning messages.
Falloff is now a deprecated (ignored) parameter, that’s what they say.

Known side effect of modification of .sif format

It could also be the case with Loopiness