I've just checked the diffences between my Runeaudioboven and Runeaudiobeneden.
The one that doesn't connect by name any more is the 'boven' and is Ver. 0.5 build janui-20180903 Linux version 4.14.34-1-ARCH (alarm@alarmpi) (gcc version 7.3.1 20180312 (GCC)) #1 SMP Tue May 15 00:50:02 CDT 2018
The one that still connects normally is Ver. 0.4b build 20170229 Linux version 4.4.39-ARCH+ (frank@franks-ubuntu) (gcc version 4.8.3 20140106 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2014.01 - Linaro GCC 2013.11) ) #5 SMP Sat Feb 11 15:43:36 CET 2017 and doesn't update automatically
So something happened with the 0.5 build... but what?