GNS3 gui/server 2.0.3
ubridge 0.9.11

GNS3 is launched, but no project is open:

Opening an existing 2.0.3 project with a single non running IOS-XRv 6.1.2 qemu node:

Checking which process needs so much CPU:

ubridge should NOT be running, since no node is currently running.
If I load another project with other type(s) of qemu node, such as ASAv or CSR 1000v, ubridge is not running.