The problem seems to have arisen due to inotify watch limitation
Listen inotify Linux . , .
$ cat /proc/sys/fs/inotify/max_user_watches
8192, Linux x64
,
$ sudo sysctl fs.inotify.max_user_watches=524288
$ sudo sysctl -p
run
$ echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf
$ sudo sysctl -p