Job submission fails: curl::curl_fetch_memory() timeout on Windows (SChannel, bytes sent: 0)

[ranchen-not-a-word]

I’m trying to submit a job via CyteTypeR() but the job submission fails with an HTTP timeout error. It looks like the request times out during the send phase on Windows SChannel (bytes sent: 0), so the job never reaches the API.

What happened

When running CyteTypeR(...), I see:

results <- CyteTypeR(obj=combined,

•                  prepped_data = prepped_data, 
  

•                  study_context = "skeletal musle samples from mouse", 
  

•                  metadata = metadata
  

• )
  INFO [2026-01-11 14:13:53] Submitting job to CyteType...
  An error occurred: Failed to perform HTTP request.
  Caused by error in curl::curl_fetch_memory():
  ! Timeout was reached [nygen-labs-prod--cytetype-api.modal.run]:
  schannel: timed out sending data (bytes sent: 0)
  错误于CyteTypeR(obj = combined, prepped_data = prepped_data, study_context = "skeletal musle samples from mouse", :
  Job submission failed.

Expected behavior

The job should be submitted successfully and return a job id (or proceed to polling) without timing out.

Environment

OS: Windows (Windows 11)

R version: (4.5.3)

CyteTypeR version: (0.1.4)

[parashardhapola]

Hi @ranchen-not-a-word. Moving this to CyteTypeR repo. I will look into it.

[suu-yi]

Hi @ranchen-not-a-word,
Perhaps you can try the latest version of CyteTypeR 0.1.5 released in November and let us know if the issue persists!