In Canvas, we can no longer directly create a new node after dragging to create a new edge, as the edge disappears. This is a bug in Obsidian v1.11.X that was not present in previous versions.
Demo:

In Canvas, we can no longer directly create a new node after dragging to create a new edge, as the edge disappears. This is a bug in Obsidian v1.11.X that was not present in previous versions.
Demo:

Add card is working on my end but not Add note from vault.

The team may be aware of this issue, but please paste in the output of the Show debug info command as asked for in the bug report template. Thanks!
Here’s mine:
SYSTEM INFO:
Obsidian version: v1.11.5
Installer version: v1.10.6
Operating system: Windows 11 Pro 10.0.26200
Login status: logged in
Language: en
Catalyst license: supporter
Insider build toggle: on
Live preview: on
Base theme: adapt to system
Community theme: none
Snippets enabled: 0
Restricted mode: off
Plugins installed: 0
Plugins enabled: 0
RECOMMENDATIONS:
none
Thank you for your kind reminder.
In Windows 11, I encountered the same situation as you, where adding a card works but adding a note does not.
SYSTEM INFO:
Obsidian version: v1.11.4
Installer version: v1.9.10
Operating system: Windows 11 Pro 10.0.26100
Login status: logged in
Language: en
Catalyst license: none
Insider build toggle: off
Live preview: on
Base theme: dark
Community theme: none
Snippets enabled: 0
Restricted mode: off
Plugins installed: 17
Plugins enabled: 0
RECOMMENDATIONS:
none
I’ll add the debug info from my Macbook later.
Just noticed there’s a report for this already: