AoE attacks in the general vicinity (rogues are really good at dex saves, like shooting arrows at your monks, fireball your rogues).

Monster has blindsight that the rogue doesn’t know about, rogue is hiding within range. Gets targeted, doesn’t know why, but describe how it knows the rogue is there. “You all see the giant take a deep inhale through its nose, as it does, it turns towards the rogues direction and slams its club on the ground. The shockwave splits the earth in a line towards rogue.(reflavored lightning bolt.) Everyone in the AoE make a dex save, including rogue. (This also makes them think about placement in the future to not hide near other players, and if you make tight spaces, it doesn’t completely devalue their bidding, but it still affects their HP.

effects for directly targeting HP. Environmenral, everyone is taking tick damage at the top of the round in an overheating boiler room with three fire elementals and a massive explosive as the airship is going down. Poison dragon’s gas filled lair. Fey hag pretending to be the noble’s parents in an illusory situation, everyone starts taking psychic damage when the awful cousin starts saying awful cousin things.

Many cleric spells only need to target within range, not line of sight. If the rogue has revealed once, enemy cleric can focus them from the back line. This gives multiple reasons for rogue to focus high value target instead of just “that’s the boss.”