Created attachment 118798 [details] bug image letters with different diacritics sometimes appears double on window of LO Writer and in exported PDF.
Hi Xistik, Thank you for reporting the bug. Can you provide a document where this always shows up, so that it can be further investigated? Sometimes LibreOffice's window doesnt refresh correctly, so switching to another app and switching back can solve such a refresh problem. Please see if that solves the problem.
Created attachment 118940 [details] файл с ошибкой
Created attachment 118941 [details] shot of text on a screen
Created attachment 118942 [details] exported bug
The issue cannot be reproduced with the provided ODT file when opened in LibreOffice 5.0.2 under Ubuntu 15.10. The Cyrillic characters with combining diacritics display properly for me.
Created attachment 119004 [details] MSO vs LO Confirmed Version: 5.1.0.0.alpha1+ Build ID: 88c51cd55d1a9b29e62269c53b3923770253ab07 TinderBox: Win-x86@62-merge-TDF, Branch:MASTER, Time: 2015-09-11_13:09:15 Locale: en-US (en_US)
This is likely a font issue. Most of the duplicate character text uses the Arial Unicode MS, while the second line uses the FreeSerif font, which i didnt have installed, so whatever LO was substituting there has the same problem.
With both Arial Unicode MS and FreeSerif fonts on linux, this doesnt occur on my Linux Mint 17.1 XFCE 64-bit. Version: 5.1.0.0.alpha1+ Build ID: 1e67e94f1a308ca60d4934e9fe9d5c048225ebe8 TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:master, Time: 2015-09-21_07:28:58 Locale: en-US (en_US.UTF-8)
*** This bug has been marked as a duplicate of bug 53312 ***