Sounds like this medication class just isn't hitting as hard for you as it does for some others, which is unfortunate! But you've still got room left on the dosing ladder, so maybe working all the way up toward the higher end over time is worth considering.
As for what you're currently doing, you're pretty clearly not actually eating below your maintenance level. If you were, the scale would be moving. Might be worth revisiting your intake numbers, either the calorie count itself is too high or the logging isn't accurate. People online constantly insist they're eating light while the scale stays put, an incredibly common mix-up, but your weight simply can't hold steady if you're genuinely undereating.
Maybe try trimming your intake further for a couple weeks and watch whether the scale finally shifts. Good luck!