TModLoader not fully opening

With the september 9th update I have suddenly ran into an issue attempting to boot TMod through steam. Upon clicking play it pulls up the command window as usual but once the window closes, after a few seconds the game in steam goes from running to closed without any error prompts. So far I have tried everything from: Completely uninstalling and reinstalling, uninstalling all mods and reinstalling them, forcing file verification through steam, loading and unloading original terraria (which still is able to open) and finally installing the newest .dotnet version as ive seen on different posts.

tModLoader•9/9/25, 7:49 AM

Tag: alllogs (Owner: jopojelly#0000)
If the information in the pinned thread does not solve your issue, please post all log files by dragging and dropping them into this chat. In Steam right click on tModLoader in the library, then hover over Manage and click on Browse local files. In the folder that appears find tModLoader-Logs and open that folder. Inside that folder are the logs files. Select them all except the Old folder and drag them into this chat. If you need a visual guide to this process watch this: https://github.com/tModLoader/tModLoader/assets/4522492/3f4efa43-753f-4733-b630-ba85e711340c

Kit 🦊OP•9/9/25, 10:37 PM

Natives.log420B

terrariasteamclient.log927B

client.log4.28KB

environment-client.log4.88KB

Launch.log1.25KB

tModLoader•9/9/25, 10:47 PM

Tag: assertionfailed
If you are getting an error such as

Assertion failed: !FAILED(hr) && "Failed to find supported audio format!"

Assertion failed: !FAILED(hr) && "Failed to find supported audio format!"

Assertion failed: !FAILED(hr) && "Failed to activate audio client!"

Assertion failed: !FAILED(hr) && "Failed to activate audio client!"

in your

Natives.log

Natives.log

, there is an issue with your audio device (your speakers/headphones/etc.).
Things to try:

Terraria and tModLoader really don't like it if you have no audio output. If you don't have one connected, try connecting one.
If you have an audio output but you are getting the error, try switching to a different audio device (different speakers, headphones, etc.)
Make sure your audio output rate is less than or equal to 48000 Hz.
If you are using Voicemeeter, you need to configure your A1-A5 devices.
If you have Sony INZONE headphones, try setting the output device as "Chat" instead of "Game".
Try the IAudioClient workaround in the tModLoader FAQ.
Audio Issues section of the FAQ https://github.com/tModLoader/tModLoader/wiki/Basic-tModLoader-Usage-FAQ#audio-issues

Kit 🦊OP•9/11/25, 8:58 PM

Im now prompted with this popup

tModLoader•9/11/25, 9:13 PM

Tag: wsapi (Owner: metacinnabar#0000)
WSPI can not initialize audio client. Solved here: https://stackoverflow.com/questions/46835811/ffplay-wasapi-cant-initialize-audio-client-ffmpeg-3-4-binaries

Stack Overflow

FFplay: WASAPI can't initialize audio client (FFmpeg 3.4 binaries)

I am trying to playback a stream that is multicasted over RTP using ffplay on Windows 7 64 bits.
The computer that serves the audio over RTP runs:

ffmpeg -re -f dshow -audio_buffer_size 15 -ac 1 -i

Kit 🦊OP•9/12/25, 1:44 AM

That fixed it but now the audio is bugging out and vibrating sadly

TModLoader not fully opening

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