Any flow block with Typescript is not working after the upgrade to 11.74.4.

Below is the error that i see in Dev tools 443-d839affc0c6a7bb0.min.js:1 Uncaught (in promise) Error: Unhandled Promise Rejection: Could not find source file: ‘inmemory://model/9’. at h (ts-169ea8f99f558ed17…r.min.js:253:114679) at Object.getSyntacticDiagnostics (ts-169ea8f99f558ed17…r.min.js:253…

Hi @vijaymkm1981 Can you share what you have in your Evaluate Block? And could you also share a screenshot of what you’re seeing in the flow itself when you get an error?

It is not only in Evaluate Block. Any block with TSscript is stuck while running the flow. My If block has this below code. Flow stuck running in this If block and not letting me stop the flow to capture the error. I need to close the postman or the Flow tab. let value=false; let decoded = atob(b…

Hi @vijaymkm1981 Try this code: let value = false; let decoded = atob(basecode); if (decoded === "") { value = true; } value; The console log was causing the issue. I’ll file a bug for this

Hello @flows-daniel , I tried this code, Still the same behavior. Looks like the flow is running in the background, but Postman UI seems to be stuck in the blocks with TS script. I can’t stop the execution with stop button. I have to close the postman and reopen everytime.

Hi @vijaymkm1981 Is it possible to share a screen recording of what you’re seeing? You can send it to me as a DM here or in the support ticket you have open. Also happy to jump on a call if that’s easier for you. I can send you a link to schedule some time.

Any flow blocks with Typescript is not working

Help Hub

vijaymkm1981 (Vijay) December 10, 2025, 10:17pm 8

Hello Daniel,

I scheduled a call for tomorrow morning 11 AM CST through calenderly link.

Thanks and aRegards,
VJ

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Any flow blocks with Typescript is not working

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