Just finished my killing spree in the arena. I was used to see the place littered with wrecks, but this time only two wrecks, one in the first round (melee) and then at the end, the slicer also left a wreck.
Hardly used missiles in battle, mostly relied on the Sabel as primary weapon on my Helgoland.
So hardly any loot from the arena.

george moromisato 2 days ago:

Try updating to 1.9 Beta 2a. Beta 2 had a bug in which some wrecks were not being created.