Yes, I confirm that shared media with mouse-click interaction is crippled in all releases after (and excluding) v1.26.9.17... This tells something about how often I (and most Cool VL Viewer users) use shared media...
The bug is the consequence of a missing change when I backported particle-picking (used for muting particles via the pie menu). It will be fixed in v1.26.10.1. In the mean time, simply use the v1.26.8 branch if you need shared media.