Hello, I’ve recently upgraded from KNIME Analytics Platform 5.4.4 to 5.5.1, and I am experiencing a critical issue when running multiple workflows in parallel via batch execution. Environment: Windows Server (running via SQL Server Agent + batch file) KNIME Analytics Platform 5.5.1 Previously tested on 5.4.4 (no issues) Problem description: When I launch multiple workflows in parallel (each in its own batch call) via SQL Server Agent, all KNIME processes close immediately and none of the workflows execute. However, when running a single workflow (batch execution one by one), everything works fine. This behavior did not occur in version 5.4.4. Troubleshooting already attempted: Assigned unique -data (workspace) and -configuration directories for each batch execution. Tried multiple separate KNIME installations (copied installation folders). Still, in version 5.5.1, running workflows in parallel crashes immediately. Expected behavior: Multiple workflows should be able to run in parallel, just like in version 5.4.4. Question: Is this a known bug/limitation in 5.5.1? Is there any workaround or fix (e.g., in 5.5.2 or later versions)? Thank you in advance for your support!

Issue running multiple workflows in parallel via batch in KNIME 5.5.1 (works fine in 5.4.4)

atiorile October 1, 2025, 12:21am 2

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