Bug: Measure repeats ignored first time through
In this score, the repeats in bars 15 and 16 are ignored first time through the four bar Groove repeat (bars 13 to 16). Notice that in the first Groove repeat (a duplicate of the second Groove), the repeats in bars 7 and 8 are played first time through. Removing the last barline repeat does not fix the issue. As pointed out in the original post, the measure repeats in the last two bars are not being exported to musicxml. The repeats are missing on the re-imported musicxml version.
My system: OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 188.8.131.5211, revision: 8b1a7dc