Bar repeats disappear in condensed staves

In Dorico 5.1 I use condensing for Alto Sax + Ten. Sax. Both of them have the same bar repeats. When condensing, a bar rest is shown.
The same happens with the Horns (1+3 und 2+4).
But with two trombones, the same thing happens, therefore it is not bound to custom condensing groups.
How can this be fixed?
Thanks for the help,

Iā€™m afraid this is a regression in Dorico 5.1. Please accept our apologies for the inconvenience. We will have a fix for this available soon.