I am on Q4OS 1.2.8, x64 bit. On the very same computer I run Nemo file manager without any problems, e.g. in Peppermint OS 6, so this proves that the hardware of this computer, a Medion X-PC, MD 8372 / MSN 1001 / S1000 D, AMD E2-1800, HD 7340 graphics, 320 GB harddrive, 4 GB memorky, cannot be the cause of the failures of the desktop after running Nemo file manager.
I downloaded the Nemo file manager from Synaptic. After running it, the desktop breaks down: it gets all dark and after right clicking on the desktop the (context) menu is crippled: is has very few items left.
The only way to get rid of the dark and crippled desktop is to log out and relog in, or make a warm or cold restart (reboot).
Anonymous
We can confirm this issue on some hardware. Virtualbox guests seems work fine.