Invisible Volta Lines
After loading an MSS style file the lines of existing voltas are becoming invisible.
The score has been converted from MuseScore 2, the MSS file has also been used in Musescore versions and saved again after some small changes with the current Musescore version. 
When I click on one of the volta numbers, the respective volta, including its lines, is selected correctly, the selection just didn't make it into the screenshot.
Increasing the line thickness in the Inspector didn't help.
| Attachment | Size |
|---|---|
| TigerRag_CJB.mscz | 21.13 KB |
| Leadsheet_He_2.mss | 60.79 KB |
Comments
I don't know what the cause is, but if I change the Line Style to dotted and then back to continuous it seems to fix the symptom.
If you open the *.mss file in a text editor, the property voltaLineStyle is set = 0.
Change the voltaLineStyle = 1, and the volta appears correctly.
In reply to If you open the *.mss file… by DanielR
That was fast. You're great. Thank you guys.
Issue with same symtoms and same workaround: #319020: Brackets for Voltas disappeared
Not sure whether they are related though?
BTW: these possible incompatibilities are the real reason why MuseScore warns you on loading such a downrev style file.
Fixed score attached, Format > Style > Volta > Line style was empty