Rc.d link disappears after reboot

[biangbiangmian]

I have an init script that gets linked to /etc/rc.d/S70bridgemode. After running /etc/init.d/bridgemode enable, I list the /etc/rc.d directory to confirm it is there, but after running sync && reboot, the entry is gone. Other init scripts work fine, only my script has a problem. Any ideas? I have tried recreating the file on the OpenWrt device, and changing ownership/permissions, but nothing has helped. Tracing /etc/init.d/enable shows no problems:

+ . /etc/init.d/bridgemode
+ START=70
+ '[' -n  ]
+ ALL_COMMANDS='boot shutdown depends start stop restart reload enable disable enabled '
+ ALL_HELP='\tstart           Start the service\n\tstop            Stop the service\n\trestart         Restart the service\n\treload          Reload configurati'
+ list_contains ALL_COMMANDS enable
+ local 'var=ALL_COMMANDS'
+ local 'str=enable'
+ local val
+ eval 'val=" ${ALL_COMMANDS} "'
+ val=' boot shutdown depends start stop restart reload enable disable enabled  '
+ '[' ' boot shutdown depends start stop restart reload' '!=' ' boot shutdown depends start stop restart reload enable disable enabled  ' ]
+ enable
+ err=1
+ basename /etc/init.d/bridgemode
+ name=bridgemode
+ '[' 70 ]
+ ln -sf ../init.d/bridgemode /etc/rc.d/S70bridgemode
+ err=0
+ '['  ]
+ return 0

The script

#!/bin/sh /etc/rc.common

START=70

stop_service() {
	killall quectel-CM
}

start_service() {
	/usr/bin/bridge_mode.sh
}

[trendy]

Is the overlayfs non-temporary and properly writable?

[biangbiangmian]

I would think so. Everything else on the system is saved properly.

[biangbiangmian]

The problem was there was a uci-defaults script that did not exit with status 0, and that script was running /etc/init.d/bridgemode disable