SFX Issue When logging back in to Plunder Pirates after a Rumble has finished, the sound effect played when the end of Rumble notification comes up is (iirc) the same sound effect played when losing a sea battle, that is, it's a failure sound effect. The same sound plays regardless of winning or not winning the Rumble. UI Issue When viewing the scores in your Guild in the completed Rumble screen, there is a message stating that you are not participating in this rumble because it started before you joined the Guild. I most definitely did participate in the rumble. Most likely culprit is the same logic being triggered for a finished Rumble and that when you join a Guild mid-Rumble.
