Paste your mod list -- you're likely using some mods that conflict with each other, and my guess is that one of them is trying to call a blueprint actor that interferes with Rotary Overdrive. For future reference, mod conflicts should be reported on their respective mod.io pages. BetaHub is for the standalone game, and does not cover modded issues.

Sorry, thought since the game had official mod integration that we could report issues with verified mods messing with the game here.

Mod List:

A Better Modding Menu: https://mod.io/g/drg/m/a-better-modding-menu Ammo Indicators: https://mod.io/g/drg/m/ammo-indicators Barrage Infector Range Indicator: https://mod.io/g/drg/m/barrage-infector-range-indicator Better Explosion Range Indicator: https://mod.io/g/drg/m/better-explosion-range-indicator Better Lok Indicator: https://mod.io/g/drg/m/better-lok-indicator Better Post Processing: https://mod.io/g/drg/m/better-post-processing-reloaded Better Spectator: https://mod.io/g/drg/m/better-spectator-reloaded Better Visibility Uplink / Fuel Cell Bubble: https://mod.io/g/drg/m/better-visibility-uplink-fuel-cell-bubble Better cracking boots: https://mod.io/g/drg/m/better-cracking-boots BhaBarnacle Hitbox fix: https://mod.io/g/drg/m/bhabarnacle-hitbox-fix Brighter Aquarqs: https://mod.io/g/drg/m/brighter-aquarqs Brighter Objects: https://mod.io/g/drg/m/brighter-objects Build Inspector: https://mod.io/g/drg/m/build-inspector Camera Shake Control: https://mod.io/g/drg/m/camera-shake-control Cave Leech Sound Attenuation Fix: https://mod.io/g/drg/m/cave-leech-sound-attenuation-fix Clearer Pings: https://mod.io/g/drg/m/clearer-laser-pointer Combined Resources: https://mod.io/g/drg/m/combined-resources Custom Hitmarker, Hit Sound & Kill Sound: https://mod.io/g/drg/m/custom-hitmarker DRGLib: https://mod.io/g/drg/m/drglib Death Marker: https://mod.io/g/drg/m/death-marker Disruptive Audio Removal Pack Plus: https://mod.io/g/drg/m/disruptive-audio-removal-pack-plus Dwarf -to- Kobold voice pack: https://mod.io/g/drg/m/dwarf-to-kobold-voice-pack Dynamic Cylinder Swap (Bulldog Revolver): https://mod.io/g/drg/m/dynamic-cylinder-swap Fast Deposit: https://mod.io/g/drg/m/fast-deposit Helldivers 2 Killstreak Counter: https://mod.io/g/drg/m/helldivers-2-killstreak-counter Hold to Jump / Bhop: https://mod.io/g/drg/m/hold-to-jump-bhop Instant Enemy Healthbar: https://mod.io/g/drg/m/instant-enemy-healthbar Missions HUD: https://mod.io/g/drg/m/missions-hud Mod Hub: https://mod.io/g/drg/m/mod-hub More FOV: https://mod.io/g/drg/m/more-fov More HP Bars: https://mod.io/g/drg/m/more-hp-bars Multifunction Indicator (former Ammo Indicator): https://mod.io/g/drg/m/ammo-indicator No Mission Control Ducking: https://mod.io/g/drg/m/no-mission-control-ducking No Ragdolls: https://mod.io/g/drg/m/no-ragdolls No ShoutBox: https://mod.io/g/drg/m/no-shoutbox No Tinnitus (Updated): https://mod.io/g/drg/m/no-tinnitus-updated No Web No problem: https://mod.io/g/drg/m/no-web-no-problem One-click Promotion: https://mod.io/g/drg/m/one-click-promotion Quick Pickaxe: https://mod.io/g/drg/m/quick-pickaxe Quick Reload: https://mod.io/g/drg/m/quick-reload Real Weapon Stats Classic (abandoned): https://mod.io/g/drg/m/real-weapon-stats-classic Reduced Terrain Destruction Particles: https://mod.io/g/drg/m/reduced-terrain-destruction-particles Refinery Pipe QoL: https://mod.io/g/drg/m/refinery-pipe-qol Remove Decals: https://mod.io/g/drg/m/remove-decals Save Last Used Hazard: https://mod.io/g/drg/m/save-last-used-hazard Shield Expiration Colors: https://mod.io/g/drg/m/shield-expiration-colors Simple Mission Control UI: https://mod.io/g/drg/m/simple-mission-control-ui Status Effect Duration Indicator: https://mod.io/g/drg/m/status-effect-duration-indicator Warm Light Flares: https://mod.io/g/drg/m/warm-light-flares Weapon Skin Transfer: https://mod.io/g/drg/m/weapon-skin-transfer

No worries. GSG just doesn't intervene when it comes to mod development, verified or not, so issues with mods should be taken to their respective creators instead. "Real Weapon Stats Classic" is your culprit. There's a backup version of this mod that doesn't intervene with Rotary Overdrive, and you can find it here: https://mod.io/g/drg/m/real-weapon-stats All the best!