Error: LM Studio - Unknown error

[b333kay]

Error Details

Model: LM Studio
Provider: lmstudio
Status Code: N/A

Straightforward config through LM Studio Local Server

name: Local Config
version: 1.0.0
schema: v1
models:

• name: LM Studio
  provider: lmstudio
  model: Qwen3-Coder-Next-UD-IQ3_XXS
  api_base: http://localhost:1234/
  roles:
  • chat
  • edit
  • apply
  • autocomplete

Error Output

Cannot truncate prompt with n_keep (23783) >= n_ctx (4096)

Additional Context
When I attach files and enter prompt in either "Chat" or "Agent" mode, I get this error
If I don't put any attachments, it will run as expected with the model.

[b333kay]

Was not a model issue, LM Studio side token setting issue.