...I have a slight problem. With mkvmerge...Any time I try to mux, the resulting video doesn't play correctly. It either stops for a while, or fastforwards. Audio also.
Uninstalling/reinstalling to latest(v4.2.0) doesn't help either. 
So until I can figure out what the heck is wrong with it? I need some help muxing. Any volunteers?..Thanks to jokli below, problem solved

...
MU codes below; (the rest will come once I finish checking the timing etc on them)
Ep.1 raw: H2KYBPHH
Ep.1 subs, fonts, chapters: RSW9FEGT
Ep.1 subs_v2: FIR1306Z
Untranslated dialog at 16.29 and 17.33
Ep.2 raw: P8EJKM0B
Ep.2 subs: 3HW9OPYZ (same fonts as in ep1)
Ep.3 raw: ZENVMEJI
Ep.3 subs: PGTQOUTN
Ep.4 raw: XZ522KAR (Z-R, but I will switch this to anon raw because of badly encoded frames in Z-R...)
Ep.4 subs: UK1M8B7M (timed to Z-R, to use with anon offset 6.60s backwards...)
Raw is Zero-Raws, after a comparison with the anon encode it seems the better one; less jumping when movement, and the anon one has some rainbowing and crawling. Z-R does have some ghosting in places, but not so it would be noticeable...
(Except episode 4...)
Also, if anyone spots any errors, mistranslations, timing issues etc, feel free to mention them, so they can be corrected before the offer is prepared...
The Odyssey sub contains an awful lot of three-liners, I've broken up the more clearer cases, but need help with the rest...