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Niantic Impactful Mistake Timeline

12-12-2018
Change Log

December 12, 2018: Page Created

Timeline

July 5 - September 22, 2016

Wild Pokemon Attack IV is bugged to correlate with Pokedex #. Pokemon with higher Pokedex # will have a higher Attack IV.

July 15, 2016

3-step tracking is effectively broken, never properly fixed, and later replaced with PokeStop tracking.

footprints

August 20, 2016

Pokemon who have moves that aren't attainable in the main series have their potential movesets fixed, creating the first wave of "legacy Pokemon."

August 22, 2016

Due to game's design, Bubblestrat is possible. Persists until Gyms are redesigned. 

December 20, 2016 - ???

Dodge glitch causes Pokemon to be switched out before they've fainted. A version of this bug has persisted to the present day in gyms and raids.

February 16, 2017

Togetic is released into the wild with a 0% catch rate.

June 20, 2017

Last Premier Ball cannot catch a Raid Boss. The initial fix is to give players an extra Premier Ball. 

July 17, 2017

Coin Exploit allowed bots to basically print coins. Niantic disabled gym defender bonuses in response until it was fixed.

July 24, 2017

Gym defenders return unfavorited, allowing trainers to accidentally transfer their favorited Pokemon.

July 28, 2017

Raid contribution bonus cleared when returning to lobby. Many raids failed because trainers who fainted would refuse to rejoin to finish off the boss. 

August 3, 2018

Curveball bonuses are unapplied in certain curveball scenarios.

January 20 - April 5, 2018

Game begins to remember which type of Poke Ball used to catch Pokemon across encounters. Unclear if this is a bug or intentional. Feature removed by April 5.

February 24, 2018

Dratini Community Day in Asia-Pacific region faces connectivity issues. Niantic extends event 3 hours.

March 30-November 11, 2018

Research feature introduced. Trainers find they can "stack" Research Task Rewards almost infinitely. On August 7th Niantic announces a 100 encounter cap to be enforced on August 20th, however, Niantic actually enforced the cap on August 16th which was earlier than announced. As an immediate response to complaints, Niantic temporarily removed the cap on August 16th and announced a new enforcement date of August 27th. On October 4th, Niantic announces they will be restoring lost encounters, causing multiple bugs including multiple Mew and Celebi encounters, full stacks being lost, and stacks being recovered that didn't originally belong to the trainer. Restoration announced as complete on October 12th. Cap is announced again on November 8th, for implementation on November 11th.

June 16, 2018

Larvitar Community Day in Asia-Pacific region faces connectivity issues. Niantic extends event 3 hours.

June 30, 2018

Safari Zone Dortmund begins with connectivity issues.

July 3, 2018

TMs lost in new item menu. Earlier related bug where TMing a Pokemon reorders where it appears (for example, 2 identical Golems), causing the trainer to TM the wrong one and waste TMs. Also the wrong move was listed.

July 7, 2018

Articuno Day happens but does not go into effect for the Azores Islands.

July 21, 2018

Zapdos Day happens but does not go into effect for the Azores Islands, again. Niantic announces a re-do for the islands for August 3rd.

July 28, 2018

The Pokemon Company announces an increase of the Pokemon storage cap to 2000, then recants the announcement. Niantic officially announces it, along with Gen 4, on October 16, 2018. Storage expansion doesn't release until November 21, 2018.

storageUpgrade

September 5, 2018

Lucky Pokemon IVs upped to always be at least 12/12/12.

September 7, 2018

Moltres Day in Asia-Pacific faces connectivity issues.

October 15, 2018

CP recalculation pushed. Most Pokemon gained some max HP, but Pokemon affected were not healed. CP recalculation is rolled back after some minutes, while Gen 4 Pokemon that release are calculated using the rebalanced formula. 

October 16, 2018

Luxio is hatchable from 10 km Eggs. This actually occurs again at a later date.

October 21, 2018

Beldum Community Day in Asia-Pacific region faces connectivity issues. Event rescheduled for the following weekend. 

October 23, 2018

Shadow Ball became TM-able on Mewtwo for ~20 minutes after Mewtwo leaves Tier 5 Raids, when the move is supposed to be legacy. Some players were reimbursed Raid Passes after sending in a support ticket.

November 1, 2018

Players who redeem their Research Breakthrough box immediately after 1:00 PM PT receive Moltres as a reward instead of Shedinja. A Raid Pass is given to players who send in a support ticket.

November 10, 2018

Cyndaquil Community Day in Asia-Pacific region faces connectivity issues. Niantic extends event 2 hours.

Metagross could learn Meteor Mash via evolution for ~45 minutes after Cyndaquil Community Day. 

November 20, 2018

Trainers who linked their Let's Go Pikachu / Eevee games to their Pokemon GO accounts receive false ban warnings caused by a Niantic bug.

pokemonLetsGo

November 23-26, 2018

Umbreon and Espeon have near 0% catch rate when released into Tier 3 Raids.

November 26-28, 2018

Raid Bosses change 3 times in 3 days. Cresselia counters added to Raid Boss pool on the 28th.

December 13, 2018

Niantic releases Trainer Battles. Alolan Pokemon appear to have the effectiveness of their non-Alolan counterparts, but testing shows it's only a graphical glitch.