Unstake() fails for getting insufficient assets from AssetManager

contracts/user/UserManager.sol

@@ -717,15 +717,14 @@ contract UserManager is Controller, IUserManager, ReentrancyGuardUpgradeable {
         comptroller.withdrawRewards(msg.sender, stakingToken);
 
         uint256 remaining = IAssetManager(assetManager).withdraw(stakingToken, msg.sender, amount);
-        if (remaining > amount) {
+        if (remaining > 0) {
             revert AssetManagerWithdrawFailed();
         }
-        uint96 actualAmount = amount - remaining.toUint96();
 
-        staker.stakedAmount -= actualAmount;
-        totalStaked -= actualAmount;
+        staker.stakedAmount -= amount;
+        totalStaked -= amount;
 
-        emit LogUnstake(msg.sender, actualAmount);
+        emit LogUnstake(msg.sender, amount);
     }
 
     /**

slither.config.json

@@ -1,5 +1,5 @@
 {
-    "detectors_to_exclude": "external-function|naming-convention|similar-names",
+    "detectors_to_exclude": "external-function|naming-convention|similar-names|solc-version",
     "exclude_informational": true,
     "exclude_low": true,
     "exclude_medium": false,

test/foundry/userManager/TestStake.t.sol

@@ -81,9 +81,8 @@ contract TestStakeAndUnstake is TestUserManagerBase {
             abi.encodeWithSelector(AssetManager.withdraw.selector, daiMock, MEMBER, amount),
             abi.encode(1 ether)
         );
+        vm.expectRevert(UserManager.AssetManagerWithdrawFailed.selector);
         userManager.unstake(amount);
-        uint256 stakeAmount = userManager.getStakerBalance(MEMBER);
-        assertEq(stakeAmount, 1 ether);
         vm.stopPrank();
     }
 }