Bug Report: How To Summon a "Severe Error" in Service Studio
Application Type
Traditional Web, Reactive
Service Studio Version
11.10.20 (Build 41551)


Service Studio unexpectedly closed my module.

Here are the steps to recreate this bug:

1. Have two modules — one Traditional, one Reactive. Both have a Screen with an Action:

2. Create a Destination in the Traditional Module:

3. Copy it and paste to the Reactive Module:

4. Double-click the Transition property of the Reactive Destination:

5. Lose an hour of work 😭


Hi Denys,

Sorry to hear that you lost one hour of work due to this bug. 

I just did some tests and the problem occurs whenever you have something not valid in the "Destination" input and you double click in the "Transition" one. It's reproducible even without copy-pasting from a Traditional module.

I've already passed the feedback to our IDE teams so they can analyze and prioritize this.

Thank you for sharing this.

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