Cant load Filament manger after new update from octoprint

[bfk220]

Running octoprint 1.5.3 and filament manager disappeared. Reload from repository does nothing.

[rufinus]

same here. installing from console shows no errors or warnings (besides pip version) are thrown.
OctoPrint version : 1.5.3
OctoPi version : 0.18.0

[grojashc]

Same here Octoprint 1.5.3

[ruralaccent]

Me too. It's totally disappeared.

[mreditor97]

I had this problem earlier, it seems to be to do with the "sqlalchemy" package.

However, I found a workaround this morning:
Find the file called "compat.py" within "[python location]/site-packages/sqlalchemy/util/" folder

Replace time.clock() with time.perf_counter().

Restart Octoprint and then Filament Manager should function as expected again.