Duration for AVCHD (mts) files is always 00:00

When playing back AVCHD files (mts format) the length for the clip always shows as 00:00, even during playback.

I can skip through the files just fine, but the time still shows as 00:00.

Not a major problem, but an annoyance!

I can provide a .mts file which exhibits the issue if needed.

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