Reproduction steps:
1. Open the attached project "ReproProj"
2. Open the “/Assets/Scenes/SampleScene.unity” Scene
3. Navigate to Window > Asset Management > Addressables > Groups
4. Change Play Mode Script to "Use Existing Build (Windows)"
5. Click Build > New Build > Default Build Script
6. Enter the Play Mode
7. Observe the Console

Expected result: "LoadAllAssets.Length: 1" exists
Actual result: Warning "The referenced script (Unknown) on this Behaviour is missing!" and Log Message "LoadAllAssets.Length: 0" is present

Reproducible with: 2.6.0 (2022.3.62f1, 6000.1.9f1, 6000.3.0a1)
Could not test with: 6000.0.52f1 (Library\PackageCache\com.unity.2d.tilemap.extras@eefc9f6533f8\Editor\Tiles\AutoTile\AutoTileTemplate.cs(12,37): error CS0246: The type or namespace name 'TileTemplate' could not be found)

Reproducible on:
Play mode
Windows Standalone Player

Testing environment: Windows 10 Enterprise 21H2
Not reproducible on: No other environment tested

Notes:
- "addressablesgroup_asset_all.bundle" does not contain a dependency on "(hash)_monoscripts_(hash).bundle"
- Reproducible with Mono and IL2CPP

Workarounds:
- Execute `Addressables.LoadAssetAsync<IAssetBundleResource>("(hash)_monoscripts_(hash).bundle")` before "LoadAllAssets"
- Set "MonoScript Bundle Naming Prefix" to "Custom" in AddressableAssetSettings and do not set "MonoScript Bundle Custom Prefix"