My level 5 rogue/ranger (3 rogue/2 ranger) doesn't seem to be able to sneak attack with scimitars despite them being finesse weapons and being proficient in them.
The sneak attack option is available, but the damage is impossibly low compared to short sword, despite the die rolls being ostensibly the same.
Is sneak attack only intended to function with "rogue" weapons despite the scimitar seeming to meet all other requirements?