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ROB2 traffic light plot fails to generate in web app although data is correctly recognised #172

@1577651418-blip

Description

@1577651418-blip

Describe the bug

I am using the robvis web app with a ROB2 dataset.
My file is recognised correctly in the "Review your data" section: all expected columns are displayed correctly, including the Overall risk of bias column and the Weight column. However, when I try to generate the traffic-light plot, the app still fails and shows an error.

The error message shown is:

"An error has occurred. Please double-check your that your selected tool matches the data you uploaded (common problem)."

In my case, the selected tool does match the uploaded data, so this seems to be a plotting-stage bug rather than a data-recognition problem.


To Reproduce

  1. Open the robvis web app
  2. Select RoB 2.0 as the assessment tool
  3. Upload a ROB2 dataset
  4. Confirm that the data preview correctly shows:
    • Study
    • 5 ROB2 domains
    • Overall risk of bias
    • Weight
  5. Click Generate Plots
  6. Go to the Traffic-light plot page
  7. The app shows the error instead of generating the plot

Expected behavior

The web app should generate the traffic-light plot normally, because the uploaded file is correctly recognised as a ROB2 dataset and the required columns are present.


What I already tried

I have already tried the following, but the issue still persists:

  • confirmed that the selected tool is RoB 2.0
  • confirmed that the dataset contains both Overall risk of bias and Weight
  • cleaned and standardised the file
  • tried both CSV and XLSX
  • tried renaming study labels to simpler ASCII-only text
  • retried after re-uploading the file

The data preview is still correct, but the traffic-light plot fails.


Screenshots

I can provide screenshots showing:

  1. the correctly recognised data preview
  2. the traffic-light plot error page

Desktop (please complete the following information):

  • OS: Windows
  • Browser: Edge
  • Version: latest available on my system

Additional context

I noticed that in issue #170, a similar problem was discussed.
In my case, however, even after checking the tool type and data structure carefully, the problem still occurs.

So this may be a web app bug affecting some valid ROB2 files during the plot generation step.

Image

Image[

rob.csv

](url)

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