Bug Report:
I was playing with the sample quest and made the hero die after setting too much bombs. Diarandor's hero sprite is no longer used after death. The old sample quest default sprite is used instead and that sprite goes invisible during sword usage.
Note:
I will report this to the Sample Quest on Github too.
Already reported: https://github.com/christopho/solarus/issues/952
Logically, I thought "Children of Solarus (https://github.com/Bertram25/ChildrenOfSolarus)" would be the place to report bugs for the sample quest. Sorry about that. I will make sure to report them to the engine (https://github.com/christopho/solarus/issues).
I now understand that the "Sample Quest" and "Children Of Solarus" are separate projects. My mistake.