I am running a very bare bones theme and WP installation.
The only plugins I have installed are:
WP Property
WP Property: Terms
WP Property: Agents.
I updated WP Property from 2.2.0.6 -> 2.30
and
WP Property: Terms from 1.0.2 -> 1.1.0
PHP version 7.1.12
WP version 4.9.5
MySQL version 5.6.38
I rolled back to the previous versions and everything seems to be intact. I am not sure about the JS errors on the settings page. I am using this for a beta test on a local server.