Varios snaps apps not display icon from appmenu in kde neon 5.16.4

Audacity, blender, video downloader (snap) does not display the icon correctly ( not appears) in the applications menu when installed on kde neon 5.16.4. In addition it seems that flatpak applications prevail over snaps since only one of them appears and not both when they are installed, for example I install the audacity version in snap and flatpak and only the flatpak applications menu appears