.ts and .m2ts files should be supported
Oh. It seems that in version 1.0.22 it actually does support them. This seems to be a bug.
They have been supported since before 1.0.16 as far as I'm aware.
You don't give any clues as to what you have done to investigate. Debug? Read the SQL database?
Even without any of that, you don't state what version you are using, on what device, and with what controller/renderer.
There is probably a workaround, even without updating.