A frustrating issue is making a comeback in Diablo 4, this time with Season 9: memory leaks. Despite Blizzard improving stability since launch, players are complaining that both system RAM and VRAM are once again spiraling out of control, leading to major crashes.
Multiple other Reddit threads have surfaces with frustrated players trying to find solutions to these issues:
“Some PCs can sit on a character select screen and crash from a memory leak. Others have to reboot every hour.”
“RAM spikes to 15–20 GB… VRAM creeps with every portal/zone transition, eventually passes 13-14 GB… Game crashes with Fenris error after ~30-45 minutes.”
Workarounds & Temporary Fixes
Players report that simply restarting the game clears the memory spike temporarily, but the issue returns quickly. Until Blizzard fixes this problem definitively, here are several community-suggested workarounds:
- Restart the game every 30-45 minutes, or when sessions exceed an hour.
- Lower texture quality to medium/high to help free VRAM.
- Turn off Cross-platform.
- Turn off windowed screen optimization. Seems to reduce the occurrence of the leak.
- Use a fixed pagefile size matching your system RAM (e.g., 32 GB pagefile if you have 32 GB RAM):
- Advanced System Settings > Advanced Tab > Performance Settings > Advanced Tab > Change > Click Custom Size-Initial (MB) & Maximum Size (MB): fill in both spaces with the Max MB of your Memory Ram!
- If you have 16gb Ram = 16000 / 64gb Ram = 64000 etc…
- Click Set > Click Ok > Click Apply > Click Ok.
- You will be prompted to Restart your PC.
- Double check that the changes were saved, if not, redo the previous steps. You sometimes need to do it twice.
- Disable advanced GPU features like DLSS, ray tracing, and frame generation to reduce both VRAM and RAM pressure.
However, these are only temporary fixes, not true solutions to the underlying memory mismanagement.
Has Blizzard Responded?
Blizzard acknowledged a similar memory leak in Season 8 and requested players to submit crash report IDs. However, many players report seeing little progress since then. In Season 9, there has been no clear update or effective fix released yet.
Why Is It So Frustrating for Players
- Memory leaks degrade performance: stuttering, slowdowns, crashes mid-dungeon.
- High-end systems (e.g., 64 GB RAM / 16 GB VRAM) also are not spared; this is not just limited to low-end PCs.
- Only a fix from Blizzard’s end, proper memory cleanup in the engine, will fully resolve the issue.
If you are playing Season 9, consider using the temporary solutions above and file a crash report or report in official channels. The more data Blizzard gathers, the faster we can hope for a real fix.
