diff --git a/gui/src/components/onboarding/BodyAssignment.tsx b/gui/src/components/onboarding/BodyAssignment.tsx
index ceb77b17fc..b264d815f7 100644
--- a/gui/src/components/onboarding/BodyAssignment.tsx
+++ b/gui/src/components/onboarding/BodyAssignment.tsx
@@ -105,7 +105,7 @@ export function BodyAssignment({
   onlyAssigned = false,
   dotSize,
 }: {
-  assignMode: AssignMode;
+  assignMode: AssignMode | null;
   mirror: boolean;
   onlyAssigned?: boolean;
   rolesWithErrors?: Partial<Record<BodyPart, BodyPartError>>;
@@ -148,8 +148,7 @@ export function BodyAssignment({
   const hasBodyPart = useCallback(
     (part: BodyPart) =>
       COMMONS.includes(part) ||
-      assignMode === AssignMode.All ||
-      ASSIGNMENT_MODES[assignMode].includes(part),
+      (assignMode && ASSIGNMENT_MODES[assignMode].includes(part)),
     [assignMode]
   );
 
diff --git a/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignOptions.tsx b/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignOptions.tsx
index 314b292259..6834af5dec 100644
--- a/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignOptions.tsx
+++ b/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignOptions.tsx
@@ -1,6 +1,6 @@
 import { Radio } from '@/components/commons/Radio';
 import { Typography } from '@/components/commons/Typography';
-import { AssignMode, defaultConfig, useConfig } from '@/hooks/config';
+import { AssignMode, useConfig } from '@/hooks/config';
 import { ASSIGNMENT_MODES } from '@/components/onboarding/BodyAssignment';
 import { useLocalization } from '@fluent/react';
 import { useForm } from 'react-hook-form';
@@ -61,11 +61,20 @@ export function TrackerAssignOptions({
   const connectedIMUTrackers = useAtomValue(connectedIMUTrackersAtom);
 
   const { config, setConfig } = useConfig();
-  const { control, watch, setValue } = useForm<{
+
+  const getPreferredSet = () => {
+    return (
+      (Object.entries(ASSIGN_MODE_OPTIONS).find(
+        ([_, count]) => count >= connectedIMUTrackers.length
+      )?.[0] as AssignMode) ?? AssignMode.All
+    );
+  };
+
+  const { control, watch } = useForm<{
     assignMode: AssignMode;
   }>({
     defaultValues: {
-      assignMode: config?.assignMode ?? defaultConfig.assignMode,
+      assignMode: config?.assignMode || getPreferredSet(),
     },
   });
   const { assignMode } = watch();
@@ -74,19 +83,6 @@ export function TrackerAssignOptions({
     setConfig({ assignMode });
   }, [assignMode]);
 
-  useEffect(() => {
-    if (connectedIMUTrackers.length <= ASSIGN_MODE_OPTIONS[assignMode]) return;
-
-    const selectedAssignMode =
-      (Object.entries(ASSIGN_MODE_OPTIONS).find(
-        ([_, count]) => count >= connectedIMUTrackers.length
-      )?.[0] as AssignMode) ?? AssignMode.All;
-
-    if (assignMode !== selectedAssignMode) {
-      setValue('assignMode', selectedAssignMode);
-    }
-  }, [connectedIMUTrackers, assignMode]);
-
   if (variant == 'dropdown')
     return (
       <Dropdown
diff --git a/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignment.tsx b/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignment.tsx
index 3d151d0166..2039a06fd1 100644
--- a/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignment.tsx
+++ b/gui/src/components/onboarding/pages/trackers-assign/TrackerAssignment.tsx
@@ -354,7 +354,7 @@ export function TrackersAssignPage() {
                 onlyAssigned={false}
                 highlightedRoles={firstError?.affectedRoles || []}
                 rolesWithErrors={rolesWithErrors}
-                assignMode={config?.assignMode ?? defaultConfig.assignMode}
+                assignMode={config?.assignMode ?? null}
                 mirror={mirrorView}
                 onRoleSelected={tryOpenChokerWarning}
               />
diff --git a/gui/src/hooks/config.ts b/gui/src/hooks/config.ts
index e1f64b4e7c..68b921d691 100644
--- a/gui/src/hooks/config.ts
+++ b/gui/src/hooks/config.ts
@@ -41,7 +41,7 @@ export interface Config {
   fonts: string[];
   useTray: boolean | null;
   mirrorView: boolean;
-  assignMode: AssignMode;
+  assignMode: AssignMode | null;
   discordPresence: boolean;
   errorTracking: boolean | null;
   decorations: boolean;
@@ -72,7 +72,7 @@ export const defaultConfig: Config = {
   fonts: ['poppins'],
   useTray: null,
   mirrorView: true,
-  assignMode: AssignMode.Core,
+  assignMode: null,
   discordPresence: false,
   errorTracking: null,
   decorations: false,