problems importing musicxml files from impro-visor

Actually, it's better if I just describe what's happening, as I think that will be more helpful, especially to programmers and developers of this software. What's happening is that a lot of the musical notation like triplet notations are being lost on import, and as a result, the measure lengths then become very irregular (e.g. if you're in 4/4 time, you'll end up with all these irregular bars also, i.e. ones with 6 beats or 3 beats). Also, on import, the triplet bars will be very large and extend to the next page. Also, I tried correcting these problems, and it's very hard/impossible to do, as you can't really get rid of irregular barlines (or you just have to hide them with the invisible function), and then because of the irregular beats, you correct one thing, and then all these other things have to be corrected (quite a pain!!!) because everything else is now way off. And then, when I resave, and try to bring the file up again, stuff has been deleted and nothing has really been corrected. So, anyway, with larger choruses (and by a chorus, for non-musicians what I mean is the repeated form which in contemporary music can be much larger than 36 measures) musescore doesn't work at all. Impro-Vise can produce any length chorus really, so at present this is incompatible with musescore. I really hope these problems get fixed though, because I've gotten used to both musescore and impro-vise and love the free nature of musescore, and would never want to purchase Finale which is way too expensive. Thanks p.s. so when do they expect the new version of musescore to be out? the 9.6.3?