SUMMARY On Arch based Manjaro Linux 5.8.18-1-MANJARO with XFCE 4.14 and Dolphin 20.08.3 i see that when i connect my Canon DSLR camera via USB cable, the icon of the new drive does not show up in the sidebar, closing Dolphin and opening does not help. But in Nemo file manager drive shows OK and i can access the photos. The normal USB flash drive appear OK when connected though.
*** This bug has been marked as a duplicate of bug 206120 ***