Dear ILIAS-Admins
Due to a quite old bug #0012860 storing 4-Byte-Characters (such as Emojis) to the Database lead to losing data since MySQL just stripped away all text after such a character. Therefore the ILIAS society funded a filter in the database-layer which filters those characters and replace them with a „?“. The Bugreport is https://www.ilias.de/mantis/view.php?id=12860
This fix now has been published in 5.2, 5.3 and trunk.
This fix does not restore already corrupted data in the database since this is not possible. E.G. broken Wiki-Pages which are inaccessible still will be broken after updating. The fix just prevents from breaking more content in your ILIAS.
Best regards
Fabian
-- Fabian Schmid Member of the Executive Board Head of Software Development
studer + raimann ag IT- and Learning-Solutions Farbweg 9 3400 Burgdorf
main +41 31 972 52 22 support +41 31 972 52 30 direct +41 31 972 52 27 fs@studer-raimann.ch studer-raimann.ch