MKV not playable on LG BD370 for MKVMerge unknown issue

Hi at all,
I'm working with MKV Toolnix since 4 years. I never got big problem with it. But... I don't know from which version, but when I muxing my MKV with simple and compatible AVC strames and AC3 sound track, I cannot see it on my LG Bluray player BD370.

I'm trying different versions of MKV (5.8.0, 5.9.0, 6.3.0) and they don't work with all movies, even if I set compression header to None (on 6.3.0 when I open the new file I found empty the header compression field, and not with "None" value, anyway...)

I found a solution, but I don't like it...

If I use Meteorite, a mkv tool to "repair" some MKV files, it works like a charm. The difference is in these screenshots...

If you can see, in the header seek, I have 5 elements on Meteorite file corrected, but in the MKVMerge generated file I have only 4 header seek.

I don't want to use Meteorite for each MKV I have in order to use in my BD Player! I would to use only one tool, like MKV Merge.

Thanks.

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