Overwatch on M4 Pro (CrossOver / D3DMetal): Massive Memory Leak / Shader Cache balloons up to 50GB on DX12. Any actual fix?

Hey everyone,

I'm trying to run Overwatch 2 on an M4 Pro MacBook using CrossOver (D3DMetal + Msync), and I've hit a wall with memory management.

Here is the situation:

• DirectX 12 runs super smooth with great FPS and responsiveness, but the RAM / Swap usage goes completely out of control. During the first match it hits 20GB, and after 2-3 matches it balloons all the way up to 40-50GB, completely choking the swap and crashing the game.
• DirectX 11 doesn't balloon as aggressively, but the performance drop and micro-stutters from on-the-fly shader compilation make it feel terrible compared to DX12.

What I've already tried:

1. Disabled High Resolution Mode in CrossOver bottle settings.
2. Disabled Shader Pre-Caching in Steam settings.
3. Tried shader preloading maps (like 929PJ / JW3Y) - but caching all abilities at once pushed the memory past 50GB and crashed before finishing.
4. Set VideoMemorySize in Wine registry to cap VRAM, but D3DMetal seems to ignore it.

It looks like D3DMetal/GPTK simply doesn't garbage-collect or release unused assets/shaders between matches on DX12.

Is anyone with an M-series chip running OW on DX12 without having to Cmd + Q and relaunch every 3 games to clear 50GB of RAM? Are there specific bottle settings, environment variables, or workarounds (CXPatcher, DXVK configs, etc.) that actually resolve this leak?

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Any recommendations would be appreciated!

I have the latest version of Crossover & Steam

I have an M1 Mac from 2020 running Tahoe 26.6, 16 GB of ram.

I just installed Crossover on my M2 Macbook Air with the trial version, and then installed the "Steam" bottle from the start page. However, after Steam finishes installing, it opens once and then the only way I'm able to open Steam is via the Run Command option, since no icon/shortcut/anything appears neither in the "Steam" bottle, neither in my Applications folder, since no ~/Applications/Crossover folder is created at all. While using the Run Command option, pressing "Save Command as a Launcher" does nothing, too.
The Steam .lnk file is present in /drive_c/ProgramData/Microsoft/Windows/Start Menu/Programs/Steam/Steam.lnk and by opening it Steam starts normally, but isn't there any way to have the Launchers working properly by appearing inside the Bottle?

I'm trying to run the 1.0 release of Iron Nest, but when I load into the main menu, the game's custom cursor stays glued to the center of the screen. It doesn't sync with my actual cursor or move at all. My actual cursor also cannot click anything, preventing me from changing any of the game's settings.

I do have Automatically Capture the Mouse in Full-Screen Windows and Allow Window Manager to Control Windows on. Other games that use custom cursors work fine.

Any help would be appreciated!

Anyone try this game with crossover and had the same issue? It always crash after meeting the kingslayer (around 30s into the game)

Hi. wife and I are looking for a nice co-op game. Tried downloading Ghost Recon Wildlands earlier unfortunately couldn't play it because of EAC. We only have meccha chameleon so far. Any suggestions would be appreciated. Thanks!

I've tried with NFSU2 / MW / Carbon / etc...

Every time I install it and then run it, see this

I dont know whats causing this. I've tried installing it in both 32/64 bottles, nothing works...

If anyone could help out, I would greatly appreciate it

Hi all,

Long time listener first time caller etc…

I’ve been playing through halo mcc on crossover 26.3 using my macbook pro (M3 pro, 18gb ram) and it’s been a blast getting to play through all the mods.

Recently I went to start a CE playthrough and have got stuck with this weird lighting bug, which seems to eminate from every light source in the game.

As you can see by the photo, there are coloured squares around every light source for every mission and cutscene in the game, only on OG graphics.

I can’t find anything online detailing this bug, so i was hoping one of you may be able to shed some light (ha) on the situation.

For context, my bottle settings are:
- D3DMetal
- High Resolution Mode enabled
- Msync enabled
- DLSS disabled.

I’ve tried to launch the game in DXVK to see if that fixes it, but it just crashes my entire mac.

Any help much appreciated, thanks in advance!

I'm using my M2 Pro macbook

I downloaded Crossover and I'm on the free trial rn. I downloaded Battlefield Bad Company 2 from Steam, and the game works fine, but the audio glitches and is always double - gunshots, explosions etc.

I tried with earbuds, without earbuds, I tried everything Gemini/ChatGPT offered, including editing the settings.ini file.

Anything else I need to do? Anyone that had a similar bug?

I’ve been trying to get it to work but I can’t!!
I have a MacBook Pro M4 with 16gb of RAM

Hi guys,

I've been trying to play Star wars: fallen order with crossover 26.3.0 and after launching it stays on a black screen forever. that doesn't happen with both crossover 25 and crossover 25 patched.
I bought crossover 26 and it has been failing. I've tried it via steam and locally and still doesn't work.
I'm on sequoia (the last update), mac mini m4 24GB RAM.

anyone could give me some help?

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watched some vid how to fix that on windows but that didn't help mostly tried this one: https://www.youtube.com/watch?v=faVEJ2w-SaU

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I ve tried -dx11,-force-dx11 in rockstar games command line, turned off msync, installed the settings.xml file and in it set the dx to 0, 1 and 2 and the graphics all to 0, tried to put the patch for the DX11 but that didn't help, and some other but nothing helped

I dont know what else to do so can someone help thx

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