this 'vsni' file is damaged or unsupported

[miz4ni]

Please help!

I am unable to import mp4 files to my After Effects and had to convert it to .mov for import. This error message always show up when I import mp4 files to my Ae. This not happened in others machine with same file.even though this had not happened beforewhereas it didn't happen beforewhereas it didn't happen before

[Mylenium]

Without any info about the source file such as how it was created/ where it originated, its specs and so on nobody can tell you much. Could simply be a very specific MP4 sub-format such as game captures create it for instance and then of course it may not work on a Mac because the CoDecs are only running on PC.

Mylenium

[R3665]

Were you able to find a way to overcome this? I'm in the same situation and I've tired uninstalling and updating everything several times.