[systemd-devel] No rhyme or reason to systemd enabling/disabling service

[Chip]

Ubuntu 16.04

With no changes to software or anything, on reboot, systemd *sometimes* 
will start dnscrypt-proxy.service while other times just ignores it and 
it fails to start. There is no rhyme or reason as to why sometimes it 
starts and other times fails to start.

All files in /etc/systemd/system/multi-user.target.wants look correct.

I need help troubleshooting this problem.

Following is a successful journalctl -xru dnscrypt-proxy.service, 
otherwise when it fails, it simply shows "no results":

journalctl -xru dnscrypt-proxy.service -- Logs begin at Mon 2016-07-18 
20:39:36 EDT, end at Mon 2016-07-18 20:48:44 EDT. -- Jul 18 20:39:51 
damonster systemd[1]: Started DNSCrypt proxy. -- Subject: Unit 
dnscrypt-proxy.service has finished start-up -- Defined-By: systemd

-- Unit dnscrypt-proxy.service has finished starting up.

-- The start-up result is done. Jul 18 20:39:51 damonster 
dnscrypt-proxy[979]: [NOTICE] Proxying from 127.0.2.1:53 to 
23.226.227.93:443 Jul 18 20:39:51 damonster dnscrypt-proxy[979]: [INFO] 
Server key fingerprint is DB51:0B61:7A1F:DECE:27CE:26B5:8934:756A:0 Jul 
18 20:39:51 damonster dnscrypt-proxy[979]: [INFO] Chosen certificate 
#805564433 is valid from [2016-01-24] to [2017-0 Jul 18 20:39:51 
damonster dnscrypt-proxy[979]: [INFO] This certificate is valid Jul 18 
20:39:51 damonster dnscrypt-proxy[979]: [INFO] Server certificate 
#805564433 received Jul 18 20:39:45 damonster dnscrypt-proxy[979]: 
[INFO] Done Jul 18 20:39:45 damonster dnscrypt-proxy[979]: [INFO] 
Generating a new session key pair Jul 18 20:39:45 damonster 
dnscrypt-proxy[979]: [NOTICE] Starting dnscrypt-proxy 1.6.1 Jul 18 
20:39:45 damonster dnscrypt-proxy[979]: [INFO] + Provider supposedly 
doesn't keep logs Jul 18 20:39:45 damonster dnscrypt-proxy[979]: [INFO] 
+ Namecoin domains can be resolved Jul 18 20:39:45 damonster 
dnscrypt-proxy[979]: [INFO] - [okturtles] does not support DNS Security 
Extensions Jul 18 20:39:43 damonster systemd[1]: Starting DNSCrypt 
proxy... -- Subject: Unit dnscrypt-proxy.service has begun start-up -- 
Defined-By: systemd

-- Unit dnscrypt-proxy.service has begun starting up.