OWOTracked phones on the SlimeVR server causing complete crashes of SlimeVR GUI, SlimeVR Server, and STEAMVR #379

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MrUnknownDE · 2026-04-05T18:37:04+02:00

MrUnknownDE commented

2026-04-05 18:37:04 +02:00

Originally created by @INEEDCHATPROGRAAAAAMS on 5/3/2025

It's an odd bug I haven't had any luck with finding a fix for on the discord, so I'm putting issues both here and in OWOtrack's github, since it only occurs in specific circumstances

Several phones (in my case, four) are connected to SlimeVR via OWOTrack. (over my home wifi. If connected over my computer's hotspot, the issue does not occur)
After a short time period, the SlimeVR GUI begins to consume several gigabytes of memory in what I can only assume is an extremely niche bug regarding logging, as during this, SlimeVR also spits out 30MB logs crying about out-of-order packets from the OWOtracked phones.

After another short period, the SlimeVR GUI crashes. Then, it cascades into crashing the SlimeVR server, and STEAMVR as well. This crash also causes the port 27062 error, which means that the computer must be fully restarted if I want to use SteamVR at all after the crash. (SteamVR can technically be saved from its fate, as it takes a few moments to crash after SlimeVR does. If you force the SlimeVR server and GUI to close before that, SteamVR will continue to function)

Unfortunately, I've had no luck finding a fix to this issue in the SlimeVR discord, so now I'm making issue reports on the githubs for any software that may be involved.

Attached are my SlimeVR logs (the six most recently modified that contain any information at all)

slimevr-server_2025-05-02_20-46-22_0.log
slimevr_r2025-05-02_20-46-20.log
slimevr-server_2025-05-02_20-45-48_0.log
slimevr_r2025-05-02_20-45-47.log
slimevr-server_2025-05-02_21-05-34_0.log
slimevr_r2025-05-02_21-05-32.log

*Originally created by @INEEDCHATPROGRAAAAAMS on 5/3/2025* It's an odd bug I haven't had any luck with finding a fix for on the discord, so I'm putting issues both here and in OWOtrack's github, since it only occurs in specific circumstances Several phones (in my case, four) are connected to SlimeVR via OWOTrack. (over my home wifi. If connected over my computer's hotspot, the issue does not occur) After a short time period, the SlimeVR GUI begins to consume several gigabytes of memory in what I can only assume is an extremely niche bug regarding logging, as during this, SlimeVR also spits out 30MB logs crying about out-of-order packets from the OWOtracked phones. After another short period, the SlimeVR GUI crashes. Then, it cascades into crashing the SlimeVR server, and STEAMVR as well. This crash also causes the port 27062 error, which means that the computer must be fully restarted if I want to use SteamVR at all after the crash. (SteamVR can technically be saved from its fate, as it takes a few moments to crash after SlimeVR does. If you force the SlimeVR server and GUI to close before that, SteamVR will continue to function) Unfortunately, I've had no luck finding a fix to this issue in the SlimeVR discord, so now I'm making issue reports on the githubs for any software that may be involved. Attached are my SlimeVR logs (the six most recently modified that contain any information at all) [slimevr-server_2025-05-02_20-46-22_0.log](https://github.com/user-attachments/files/20022098/slimevr-server_2025-05-02_20-46-22_0.log) [slimevr_r2025-05-02_20-46-20.log](https://github.com/user-attachments/files/20022097/slimevr_r2025-05-02_20-46-20.log) [slimevr-server_2025-05-02_20-45-48_0.log](https://github.com/user-attachments/files/20022100/slimevr-server_2025-05-02_20-45-48_0.log) [slimevr_r2025-05-02_20-45-47.log](https://github.com/user-attachments/files/20022099/slimevr_r2025-05-02_20-45-47.log) [slimevr-server_2025-05-02_21-05-34_0.log](https://github.com/user-attachments/files/20022101/slimevr-server_2025-05-02_21-05-34_0.log) [slimevr_r2025-05-02_21-05-32.log](https://github.com/user-attachments/files/20022096/slimevr_r2025-05-02_21-05-32.log)

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Branches Tags

main

aed/grammar-police

battery-0

bscotch/server-rewrite-temp

hannah/steam

pontoon

hannah/keybinds

server-rewrite

bscotch/accel-mount

dependabot/github_actions/gradle/actions-6

dependabot/github_actions/pnpm/action-setup-5

dependabot/github_actions/actions/upload-artifact-7

dependabot/github_actions/actions/download-artifact-8

FloorClipSteamLinkInteractionFix

sapphire/trim-vrm-json

llelievr/trackers-udp-tests

sapphire/linux-bridge-kotlin

sapphire/linux-vrchat-compatdata-path

smol-sleep-state

sapphire/stay-aligned-setup-no-step-skip

sapphire/steamvr-hands-warning

sapphire/proportions-import-skeleton-request

sapphire/bone-mask-update

llelievr/settings-profiles

bscotch/proguard

bscotch/bvh-fix

mitten

bscotch/reset-proof-tests

hannah/install-from-server

smol-buttons

TheButlah-patch-1

sapphire/update-solarxr

sapphire/kotlin-flatbuffers

csv-data-export

feat_flashmode

bscotch/remove-drift-compensation

llelievr/kotlin-config

bscotch/fix-osc-duplication

llelievr/keep-battery-value

rest-calibration-support

tracker-graph

fingertracking

update-eslint

tauri-android

hide-new-resets

height-config

snap-serial

feat/new-updater

support-inches

vrc-fix-ik-key

llelievr/3dmodel-preview

accel-mapping-fixes

llelievr/manual-proportions-rework

llelievr/put-automatic-steamvr-tracker-assigment-first

llelievr/remove-manual-mounting-onboarding

onboarding-usage-step

oldflex

motion-compensation

kotlin-warnings-fix

accessories

tpose

foxvr

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Reference: github/SlimeVR-Server#379