Comment 6 for bug 1759502

Unfortunatelly, this bug is reproduced with installed 32 bit Debian weekly build testing system with equals described testcase.
This system containing too with Liblouis 3.5.0 version, but Orca screen reader version is different, 3.26.0 stable version.

To ensure with 64 bit architecture Debian and Ubuntu distributions environment is not affected, I downloaded a 64 bit Debian testing weekly build net inst cd, download link is following:
https://saimei.ftp.acc.umu.se/cdimage/weekly-builds/amd64/iso-cd/debian-testing-amd64-netinst.iso

After installation, I restarted the virtual machine with the new installed system and tryed reproduce the first letter described testcase.
Pressed Orca modifier+space keystroke, and goto the Braille page. After I enabled the contracted braille support related check box into Orca preferences dialog/Braille page and click OK button, Orca user settings reloaded related message is spokened, and Orca not freeze. My installed 64 bit Debian testing system is works perfect with enabled contracted braille support.

So, I don't no why, this issue absolute sure happening only with 32 bit environment, 64 bit systems is not affected.
My Ubuntu 16.04 Mate edition 64 bit system I using too with Liblouis 3.5.0 version and Orca master branch development version without any problem, enabled contracted braille setting and hungarian grade 2 Braille.

Attila