ArgumentException: duplicate key in SetupTextureOverrides when multiple animated content packs are loaded

[GREED014]

Bug Description

When multiple animated content packs (such as Animated Fish,
AnimatedGemstones, Animated Food and Drinks, Animated Mining Pack)
are loaded together, SpaceCore throws an ArgumentException in
SetupTextureOverrides.

Error

ArgumentException: An item with the same key has already been added.
Key: {X:208 Y:352 Width:16 Height:16}
at System.Collections.Generic.Dictionary`2.TryInsert
at SpaceCore.VanillaAssetExpansion.VanillaAssetExpansion.SetupTextureOverrides()
at VanillaAssetExpansion.cs:line 316

Steps to Reproduce

1. Install multiple animated content packs that use SpaceCore texture overrides
2. Launch the game
3. Error appears in SMAPI log

Workaround

I created a Harmony patch that suppresses the error as a temporary fix:
https://www.nexusmods.com/stardewvalley/mods/46515

The patch catches the ArgumentException in a Harmony Finalizer,
preventing the crash. However, this does not fix the root cause.

A proper fix would be to check if the key already exists before
calling Dictionary.Add in SetupTextureOverrides (line 316).

SMAPI Version

4.5.2

Game Version

Stardew Valley 1.6.15

[spacechase0]

Unfortunately this can't truly be fixed in a way for both to work, since it is just logically impossible for both to run at once.

That being said, I can make it no longer throw an exception, and instead log a friendlier error only once.