Observer Cooldown is broken
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tick
This is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)

Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Example 3:
part 1: Piston
1.13pre-7: Piston is constantly powered
1.12: Piston pulses
part 2: Dust behavior.
1.13pre-7: the redstone dust never unpowers
1.12: the redstone dust turns on and off
+ observers powers more times/minute in 1.13pre-7 compared to 1.12
Created Issue:
Observer Cooldown is broken
Observers are missing their cooldown.
This is a huge flaw and it breaks about 80% of doors
Example: This create 2 pulses directly after each other
sending a 2 tick pulse to the piston
Observers are missing their cooldown.
This is a huge flaw and it breaks about 80% of doors
Example: This create 2 pulses directly after each other
sending a 2 tick pulse to the piston
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston get 2 tick pulse
1.12: piston gets 1 tick pulse
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston
get 2 tick pulse
1.12: pistongets 1 tick pulse
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Example 3:
part 1: Piston
1.13pre-7: Piston is constantly powered
1.12: Piston pulsespart 2: Dust behavior.
1.13pre-7: the redstone dust never unpowers
1.12: the redstone dust turns on and off+ observers powers more times/minute in 1.13pre-7 compared to 1.12
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Example 3:
part 1: Piston
1.13pre-7: Piston is constantly powered
1.12: Piston pulsespart 2: Dust behavior.
1.13pre-7: the redstone dust never unpowers
1.12: the redstone dust turns on and off+ observers powers more times/minute in 1.13pre-7 compared to 1.12
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Example 3:
part 1: Piston
1.13pre-7: Piston is constantly powered
1.12: Piston pulsespart 2: Dust behavior.
1.13pre-7: the redstone dust never unpowers
1.12: the redstone dust turns on and off+ observers powers more times/minute in 1.13pre-7 compared to 1.12
Observers are missing their cooldown.
Observer can power directly after the tick it already power, sending a constant power if made to update every tickThis is a huge flaw and it breaks about 80% of doors
Example:
1.13pre-7: piston is powered for 2 ticks (4 gameticks)
1.12: piston is powered for 1 ticks (2 gameticks)
Example 2:
1.13pre-7 : right piston is extended same way as left piston
1.12: right piston pulses twice
Example 3:
part 1: Piston
1.13pre-7: Piston is constantly powered
1.12: Piston pulsespart 2: Dust behavior.
1.13pre-7: the redstone dust never unpowers
1.12: the redstone dust turns on and off+ observers powers more times/minute in 1.13pre-7 compared to 1.12
Confirmed for 1.13 official release
This bug also causes various inconsistencies




Confirmed in 1.13-pre8: Observer does not work as it should.
This bug was introduced in 1.13-pre4, and affects all subsequent versions.
I'd like this fixed before the release.
The clock driving this circuit is common. The top observer that detects the output repeater outputs a constant signal. It would be the same if the lower repeaters were a continuation of the rails.

Confirmed for 1.13-pre9.
Still in pre10..
This mechanic breaks alot of redstone creations for no reason. It was a really useful and intuitive mechanic widely used by redstoners, and accidentally removing it will just pisses of people as their redstone breaks for no reason.
This bug will be detrimental to the redstone community, destroying much of our previous work. The original mechanic has been the same for 2 years, since observer's release, and from that point onward many amazing contraptions have been built. If this bug remains present, we will have to bury all our work.
Confirmed for 1.13 official release. :'( good luck guys...
Confirmed in 1.13, turned a lot of redstone circuits into clocks and tanked my Patreon servers tick rate as a result.
That's already marked as affected...
18w30a also affected
18w30b as well.