We have released InDesign 2020.1.1(v15.1.1.103) with a lot of stability fixes. We recommend you to upgrade to latest version (if you’re not already on it) as it is more robust.

If you still face this issue even after updating, please submit the crash report to us. (Guidelines to submit crash are available at (https://helpx.adobe.com/indesign/kb/submit-crash-reports.html )

Also, please send the following information to santalwa@adobe.com :
• Reproducible Steps – What were you doing when InDesign crashed?
• Video recording of the crash?
• Is(Are) the issue related to a specific document(s)/asset(s)? If yes, could you provide the document(s)/asset(s) to us? Please package the entire document (To package the document, choose File → Package…)

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Adobe InDesign Team

InDesign 2020 15.0.1: The problem is still there. It depends on the number of individual chapter files - currently 156. If I combine individual chapters and thereby reduce the total number of chapters, I can create the index.
As a programmer, I say: Apparently a buffer / variable somewhere is too small.

We have released InDesign 2020.0.1 with a lot of stability fixes. We recommend you to upgrade to latest version (if you’re not already on it) as it is more robust.

If you still face this issue even after updating, please submit the crash report to us. (Guidelines to submit crash are available at (https://helpx.adobe.com/indesign/kb/submit-crash-reports.html)

Also, please send the following information to santalwa@adobe.com:
• Reproducible Steps – What were you doing when InDesign crashed?
• Video recording of the crash?
• Is(Are) the issue related to a specific document(s)/asset(s)? If yes, could you provide the document(s)/asset(s) to us? Please package the entire document (To package the document, choose File → Package…)

—
Adobe InDesign Team

I have the same problem:

Indesign CC 2019 14.0.3 and Indesign CC 2020 15.0:
Crash when generating the index in a book with many chapters.
The book has 156 chapters (from 1 page to 30 pages) - when updating the index reproducible crash.
The book has 822 pages.

Yes i have sent numerous crash reports for the latest build- still happening. so frustrating especially when my book is only 190 pages at this stage

Hi,
Myself Sanyam Talwar from InDesign Engineering team, I am currently investigating the current issue.

During our analysis of issue mentioned in the thread, we found that you had reported a crash with an older release of InDesign.

We have released InDesign CC2019.0.1 with lot of stability fixes. If you are not on 14.0.1.209 then I would recommend you to upgrade to latest version as it is more robust.

If you still face an issue with the latest release, please submit the crash report. Guidelines to submit crash are available at https://helpx.adobe.com/indesign/kb/submit-crash-reports.html

Also, Please send the following information to santalwa@adobe.com.
• OS
• System configuration
• Reproducible Steps – What were you doing when InDesign crashed?
• Error snapshot or video recording of the issue?
• Is(Are) the issue related to a specific document(s)/asset(s)? If Yes, Can you please provide the document(s)/asset(s)?
• Does Trashing preference and cache, please create a backup of Preference and cache before trashing them, help to resolve the issue?

Regards
Sanyam Talwar

This exact same problem occurs on my Mac as well. It is not exclusive to that person's computer. The entire program crashes

Thank you Aman. The issue is resolved. Appreciate your help!