Bug 138633 - FILEOPEN PPTX: content of formula not shown (sort-of regression from 5.3)
Summary: FILEOPEN PPTX: content of formula not shown (sort-of regression from 5.3)
Status: RESOLVED DUPLICATE of bug 129061
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: filters and storage (show other bugs)
Version:
(earliest affected)
7.0.3.1 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL: https://bbs.libreofficechina.org/foru...
Whiteboard:
Keywords:
Depends on:
Blocks: PPTX
  Show dependency tree / graph
 
Reported: 2020-12-03 03:57 UTC by Liaison to zh-CN User Community
Modified: 2020-12-18 08:55 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Attachments
Sample file (338.34 KB, application/vnd.openxmlformats-officedocument.presentationml.presentation)
2020-12-03 03:57 UTC, Liaison to zh-CN User Community 		Details
Screenshot in MS Powerpoint (239.07 KB, image/png)
2020-12-03 03:58 UTC, Liaison to zh-CN User Community 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Liaison to zh-CN User Community 2020-12-03 03:57:02 UTC 
Created attachment 167778 [details]
Sample file

This is a bug report forwarded and translated from Chinese user forum.

The user is using LibreOffice to open a certain PPTX file.  In 5.3.6.1 the file shows duplicated content when opened in Impress.  The user then upgraded to 7.0.3.1, the duplicated content problem disappeared, but a new problem occurs -- the content of a formula on the slide are now blank, while they were shown (though duplicated) before in 5.3.6.1.

A single-page sample file is attached.  I can reproduce the problem of blank formula in 7.1.0 Beta1:
Version: 7.1.0.0.beta1 (x64)
Build ID: 828a45a14a0b954e0e539f5a9a10ca31c81d8f53
CPU threads: 2; OS: Windows 10.0 Build 18363; UI render: Skia/Raster; VCL: win
Locale: zh-CN (zh_CN); UI: zh-CN
Calc: threaded
Comment 1 Liaison to zh-CN User Community 2020-12-03 03:58:56 UTC 
Created attachment 167779 [details]
Screenshot in MS Powerpoint

For comparison, this is how the sample file looks when opened in MS Office.
Comment 2 Roman Kuznetsov 2020-12-03 20:20:15 UTC 
confirm in

Version: 7.2.0.0.alpha0+
Build ID: 4e63ec27b69fa01ff610c894c9fbf05c377a6179
CPU threads: 4; OS: Mac OS X 10.16; UI render: default; VCL: osx
Locale: ru-RU (ru_RU.UTF-8); UI: en-US
Calc: threaded
Comment 3 yanjingtao 2020-12-04 00:24:49 UTC 
Reproduce in
Version: 7.1.0.0.beta1 (x64)
Build ID: 828a45a14a0b954e0e539f5a9a10ca31c81d8f53
CPU threads: 16; OS: Windows 10.0 Build 19042; UI render: Skia/Vulkan; VCL: win
Locale: zh-CN (zh_CN); UI: zh-CN
Calc: threaded

Version: 7.0.4.1 (x64)
Build ID: e3cebc55238632eae061a3da668963d484a71147
CPU threads: 16; OS: Windows 10.0 Build 19042; UI render: Skia/Vulkan; VCL: win
Locale: zh-CN (zh_CN); 界面: zh-CN
Calc: threaded
Comment 4 Xisco Faulí 2020-12-18 08:55:23 UTC 
The equations are gone since https://cgit.freedesktop.org/libreoffice/core/commit/?id=4038d6c393c3cf6330671124ba69cdba98b24960

*** This bug has been marked as a duplicate of bug 129061 ***