My home-assistant.log file is full of this error, I am running on a Pi2 and everything seems to be working fine. Also suffering from the disappearing all.*, has affected all.automations for me. Reloading them brings them back.
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined
2018-02-14 21:46:22 ERROR (MainThread) [frontend.js.latest.201801300] http://192.168.1.6:8123/frontend_latest/core-41bb07102212e1ea8b6668370a877b92.js:1:6880 TypeError: t is undefined