diff --git a/android/src/main/java/com/swmansion/rnscreens/legacy/bottomsheet/SheetUtils.kt b/android/src/main/java/com/swmansion/rnscreens/legacy/bottomsheet/SheetUtils.kt
index d15849c329..fe771b8821 100644
--- a/android/src/main/java/com/swmansion/rnscreens/legacy/bottomsheet/SheetUtils.kt
+++ b/android/src/main/java/com/swmansion/rnscreens/legacy/bottomsheet/SheetUtils.kt
@@ -1,5 +1,6 @@
 package com.swmansion.rnscreens.legacy.bottomsheet
 
+import android.util.Log
 import android.view.View
 import com.google.android.material.bottomsheet.BottomSheetBehavior
 import com.google.android.material.bottomsheet.BottomSheetBehavior.STATE_COLLAPSED
@@ -9,6 +10,8 @@ import com.google.android.material.bottomsheet.BottomSheetBehavior.STATE_HIDDEN
 import com.swmansion.rnscreens.legacy.Screen
 import com.swmansion.rnscreens.legacy.ext.asScreenStackFragment
 
+private const val TAG = "SheetUtils"
+
 object SheetUtils {
     /**
      * Verifies whether BottomSheetBehavior.State is one of stable states. As unstable states
@@ -75,7 +78,8 @@ object SheetUtils {
      * @param state state of the bottom sheet
      * @param detentCount length of array with detents fractions
      *
-     * @throws IllegalArgumentException for invalid state / detentCount combinations
+     * A stable state that the current detents array cannot express is clamped to the top-most
+     * detent rather than throwing, see [unmappedDetentIndex].
      */
     fun detentIndexFromSheetState(
         @BottomSheetBehavior.State state: Int,
@@ -86,7 +90,7 @@ object SheetUtils {
                 when (state) {
                     STATE_HIDDEN -> -1
                     STATE_EXPANDED -> 0
-                    else -> throw IllegalArgumentException("[RNScreens] Invalid state $state for detentCount $detentCount")
+                    else -> unmappedDetentIndex(state, detentCount)
                 }
 
             2 ->
@@ -94,7 +98,7 @@ object SheetUtils {
                     STATE_HIDDEN -> -1
                     STATE_COLLAPSED -> 0
                     STATE_EXPANDED -> 1
-                    else -> throw IllegalArgumentException("[RNScreens] Invalid state $state for detentCount $detentCount")
+                    else -> unmappedDetentIndex(state, detentCount)
                 }
 
             3 ->
@@ -103,12 +107,34 @@ object SheetUtils {
                     STATE_COLLAPSED -> 0
                     STATE_HALF_EXPANDED -> 1
                     STATE_EXPANDED -> 2
-                    else -> throw IllegalArgumentException("[RNScreens] Invalid state $state for detentCount $detentCount")
+                    else -> unmappedDetentIndex(state, detentCount)
                 }
 
-            else -> throw IllegalArgumentException("[RNScreens] Invalid state $state for detentCount $detentCount")
+            else -> unmappedDetentIndex(state, detentCount)
         }
 
+    /**
+     * Maps a stable [BottomSheetBehavior.State] that the current detents array cannot express.
+     *
+     * This is reachable through ordinary prop updates: when `sheetAllowedDetents` shrinks while the
+     * sheet rests in a detent that no longer exists, Material keeps reporting the old state until
+     * the sheet is re-settled. Going from `[0.5, 1]` to `[1]` while collapsed, for example, delivers
+     * STATE_COLLAPSED with a detentCount of 1.
+     *
+     * Throwing from a state change the user cannot avoid takes down the whole app, so clamp to the
+     * top-most valid detent instead. The rewritten form sheet already treats an unmapped state as a
+     * non-fatal case (`FORM_SHEET_UNKNOWN_DETENT_INDEX`); -1 cannot be reused here because this
+     * mapping already spends it on STATE_HIDDEN, and reporting the sheet as dismissed would be
+     * worse than reporting the nearest detent.
+     */
+    private fun unmappedDetentIndex(
+        state: Int,
+        detentCount: Int,
+    ): Int {
+        Log.w(TAG, "[RNScreens] State $state has no detent in an array of $detentCount, clamping to the top detent")
+        return (detentCount - 1).coerceAtLeast(0)
+    }
+
     fun isStateLessEqualThan(
         state: Int,
         otherState: Int,