I am experiencing this problem since Gantry 5.2.13 on one site and 5.3.2 to 5.3.4 on another one.
Updating causes all accented texts to be hashed (see images), however, only in the menus and headlines, not in the texts within a particular page, which appears to indicate that the UTF8 collation is correct for the site, but not for Gantry.
On the first site I restored all public_html files from a back-up, which solved the problem.
On the latter I installed the Helium template 5.3.2, which generated the problem. The Hydrogen v. 5.3.2 template was working fine, previous to the install.
Here I only restored Gantry 5 files and the Hydrogen template to the existing version previous to the Helium install. The template manager now indicates Gantry 5.3.2, however, the 5.3.4 package update does not show anymore on the update manager (the template package does, but cannot be installed), and the hashed text problem is still there.
Apparently, the Gantry package and/or template install overwrites more than just Gantry 5 files...
I really need to solve this problem, because I run various multi lingual sites - in Dutch, Spanish and English, mostly - and not being able to reliably update Gantry and the related templates poses a serious problem, obviously.
Any help is most appreciated!
Hosting provider: Siteground (Apache)
PHP version 5.6.25 (Linux)
Joomla version: 3.6.2
Gantry 5.2.13 (site 1), Gantry 5.3.2 (rolled back from 5.3.4 - site 2)
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