Conversation so far:
how did Woodes Rogers prepare?
Rogers was approached by William Dampier, a navigator and friend of Rogers' father, who proposed a privateering expedition against the Spanish.
why did he approach rogers?
This was a desperate move on the part of Captain Dampier to save his career.
what had happened to Dampier's career?
Dampier had recently returned from leading a two-ship privateering expedition into the Pacific, which culminated in a series of mutinies before both ships finally sank due to Dampier's error.
what error had he made?
not having the hulls properly protected against worms before leaving port.
and did rogers agree to his proposal?
Unaware of this, Rogers agreed.
what did he do after agreeing?
Commanding two frigates, Duke and Duchess, and captaining the first, Rogers spent three years circumnavigating the globe.
was dampier with him on this trip?
Dampier was aboard as Rogers' sailing master.
did they have any problems on this voyage?
Rogers encountered various problems along the way.
what problems did he encounter?
Some of the crew mutinied after Rogers refused to let them plunder a neutral Swedish vessel.

Question: why did they do that?
Self-contained rewrite: why did Roger's crew mutiny?