It may just be my (not always successful) way of doing things, but I ran into a problem when I recently updated to version 1.8.3. Things were hanging in odd ways and I was deep in the (write-only?) code before I figured out that I was missing the “/static/log” directory. This resulted in various internal errors when the code tried to access water_log.csv. All I needed to do was to create the directory, but it seems like it should have been there.
It doesn’t appear as though the logging code has changed much, so this problem may have somehow resulted from my recent update to 1.8.3.