Para mim, tudo bem se eu fechar todos os processos conemu.exe
ou conemu64.exe
(ou mesmo conhost.exe
ou cmd.exe
se houver algum, mas eles não devem afetar o ConEmu) e começar o ConEmu, dê uma olhada :
Mas anote uma coisa importante :
If you start ConEmu(or any other program) from another program like launcher or by hot-key created by another program or even by mouse gesture(using something like Strokes Plus) you need to restart that program to make that program to receive new environment variables/values, which will be given to child programs, you can see which are child processes and which are parent ones in program like Process Explorer or Process Hacker. So in order to child receive right environment variables/values you need to restart its parent(if you call child from parent).