Update,
7/15/18. Just adding to the thread, updated to 10.13.16, and finally decided to turn on the sleep mode at factory default. will see what happens.
6/14/18- reset defaults via command line, did not work. To date the only thing that has worked is turn OFF sleep mode, fyi.
my previous posts:
Decrypt/re-encrypting did not correct the issue for me, it got worse, had to unplug and walk away for about an hour. Below is my timeline;
Same problem here also, mac mini 2012, started exactly after the 10.13.4 update.
I get the hang, log in screen with unresponsive keyboard and mouse, and I am using FileVault. Have already tried all of the recommended fixes including reinstalling macOS with negative result.
Since I should not have to relinquish FileVault, I'm looking for more options. Have not heard anything from Apple yet. One thing I am going to try tonight is running with the SLEEP MODE turned OFF;
{Choose Apple menu > System Preferences, then click Energy Saver}
I have read some tech notes that indicate the sleep mode has a record of interfering with log ons and boot ups as well as keyboard/mouse malfunctions.
I've seen where there is a 'combo update' available on this thread, not ready to try that yet. Anyone else with any ideas (except turn off FileVault) are welcome. toodles.
Update. After months of this issue every day, after turning off Sleep Mode, day one, the mini logged in normally with File Vault turned ON and all settings as they were prior to the update. Will run it a few days and advise.
Update 2; This works for me, turn OFF Sleep mode. {Choose Apple menu > System Preferences, then click Energy Saver}.
5 days into it and no problems logging it on. Try it, you'll like it.
However,,,,(there's always a however), now I discovered that I have to manually update passwords in Safari, and they don't stick unless I restart after updating said password(s). I don't know if this bug came with the update, or if it started when I turned off sleep mode.
For now this fix works for the log-on fiasco.
C'mon Apple, I am running out of bug spray.
UpDate 3; Updated to 10.13.5, this DID NOT resolve the sleep/wake failure with hang, log in screen with unresponsive keyboard and mouse, forcing me to hard shut down and start again. It DID resolve the weird password thing I listed above. Had to Turn OFF Sleep Mode again. File Vault is ON.
UpDate 4; Decrypt/Re-Encrypting did not correct the issue for me, it got worse, had to unplug and walk away for about an hour. The only thing that has worked is turn off the sleep mode {Choose Apple menu > System Preferences, then click Energy Saver}.
It appears that everyone's hardware and configuration differences have an effect on the fix (or no fix). I'm not a software engineer, but it's obvious that 10.13.4 created the sleep mode/log on problem and 10.13.5 made the problem worse. It's also obvious that there is a root issue (one if not morrevolving around the sleep mode. Hint Hint Apple!