Donation edition detects several computers for different FFS versions

[yanarof]

Hello, I have the following problem: freefilesync detects that it has been launched on several PCs, but I actually only use it on one computer, now it thinks it has been installed on 4 different computers.
Before downloading the latest version of FFS, it thought it was installed on 3 devices.

Screenshot at 2021-01-04 11-23-57.png

Does anyone have this problem too ?
I'm running it on Ubuntu 20.04.1 LTS


Edit: i'm running FFS with this command:

/usr/bin/nice -n 19 /usr/bin/ionice -c2 -n7 FreeFileSync


which puts FFS with minimum CPU priority & minimum HDD priority
so that i can leave it running it in background without having my whole computer freezing because ffs using all the resources

[Zenju]

What does ip a return when entered in terminal? Do you have multiple network cards or WLAN devices which keep changing?