Bug #121088 MySQL Workbench CSV Import Wizard ProgressBar error and import failure

Description:
MySQL Workbench 8.0.47 on Windows consistently fails when importing a large CSV file using the Table Data Import Wizard.

The import process does not progress normally and the progress bar remains stuck. During or after the import attempt, MySQL Workbench displays an unexpected error:

"Cannot access a disposed object.
Object name: 'ProgressBar'."

The import does not complete successfully. In some attempts, the table is created but contains 0 rows.

I have already restarted the computer and reinstalled MySQL Workbench, but the problem still occurs.

The CSV file contains approximately 264,000 rows and was generated from a cleaned and merged dataset. The same import operation is required for data analysis.

Please investigate the Table Data Import Wizard progress bar/import failure on Windows.

How to repeat:
1. Open MySQL Workbench 8.0.47 on Windows.
2. Connect to a local MySQL Server.
3. Open the salesdata_db schema.
4. Select Table Data Import Wizard.
5. Select the CSV file containing approximately 264,000 rows.
6. Create/select the quantium_merged table.
7. Start the import.
8. The progress bar does not proceed normally.
9. The import fails or remains stuck.
10. MySQL Workbench displays the "Cannot access a disposed object. Object name: 'ProgressBar'" error.

Error Window Screenshot

Attachment: Screenshot (213).png (image/png, text), 175.27 KiB.

Posted by developer:

This issue applies to the legacy MySQL Workbench 8.x implementation that is no longer supported or maintained.
MySQL Workbench 26.7 is a complete rewrite using a new technology stack and does not use the affected legacy implementation.
Therefore, this issue is not applicable to the current MySQL Workbench product and as such is closed.