Joy

Turtonator Crest - Buffs stats and increases punishment to opposing physical attacks. Raises SpAtk and Speed. Grants effects of Flame Body and Rough Skin. Shell Trap now remains active for 2 hits or 2 turns, whichever happens first. Milotic Crest - Redistributes stats to prioritize offense, adds Dragon-typing, and changes ability. 95 HP, 60 Atk, 79 Def, 100 SpA, 125 SpD, 81 Spe → 70 HP, 100 Atk, 70 Def, 130 SpA, 70 SpD, 100 Spe Changes Milotic into a dual Water/Dragon type Overrides Milotic's ability with the effects of Shed Skin and Wonder Skin Froslass Crest - Buff stats and gives passive health drain on frozen opponents. Froslass now saps 1/16 health of frozen opponents; absorption increases to 1/8 during hail. Raises all of Froslass' base stats except Speed by 10. Froslass' Draining Kiss now has a 20% chance to freeze Pokemon.

Eevee Crest - Strengthens Eevee and automatically adapts it to field effects. Raises Eevee's stats. Makes not very effective moves hit for neutral damage (like Tinted Lens). Changes Eevee's type depending on the field (like Mimicry). Also changes its Normal-type moves to match. Also consider letting Eevee learn Nature Power.

Minior Crest - Makes Shields Down behave like Stance Change (Minior's form change depends on using moves not its HP). Minior changes to Core Form when it uses an attack move or Shell Smash. Minior changes to Meteor Form when it uses Protect. Hydreigon Crest - Exchanges Levitate for a unique version of Parental Bond. For every 1/3 HP lost, another head begins attacking. > 67% HP - No effect. 33% - 66% HP - 1-hit attacks become 2-hit; 2nd hit has 50% power. < 33% HP - 1-hit attacks become 3-hit; 2nd hit has 50% power, 3rd hit has 25% power. Multi-hit attacks always hit exactly 3 times. Zoroark Crest - Illusion becomes more strategic. Illusion lasts two hits. When switching into a bad type match-up, Zoroark disguises itself as a party Pokemon* with good** typing against the opponent. When switching into a good or neutral type match-up, Zoroark disguises itself as a party Pokemon* with bad** typing against the opponent. *Non-fainted party Pokemon. Could be random or follow party order. **If none available, try neutral typing. If still none, default to last Pokemon (standard Illusion). Pangoro Crest - Pangoro gains Unseen Fist. Direct contact moves ignore Protect, Detect, etc. Vespiquen Crest - Raises Vespiquen's base speed, buffs its signature moves, and gives it Queenly Majesty in addition to its existing Ability. Attack Order hits twice. Defend Order raises Defense and Special Defense by 2 stages. Heal Order (if still in the game) additionally cures status effects. Ninetales Crest - Moves have higher chance of causing a burn during harsh sunlight (Kantonian) or freezing the opponent during hail (Alolan).

I chose "Take a break" after the first virtual Elite 4 battle and when I started the next one, it used my player's actual team instead of the virtual one. Continuing with or without a break afterward still used my actual team. I'm assuming this would happen no matter when I choose this option. Continuing the whole way through without taking breaks uses the virtual team as expected.

I ran into the same issue. It only happened if I handed over the Magma Stone and entered Valor Mountain through Crawli's gym. No bug if you keep the Magma Stone. I recorded a small clip of the bug. Also note that going up the ladder triggers the Jenner cutscene and the player still enters through the front. In V11, there was no cutscene and you enter into a cavern with Venam before climbing up behind surfer guy.

I encountered a bug in the North Evergreen Cave. The Strength boulder gets stuck and doesn't respawn after I drop down and climb back up the ladders.

Telling Novae "Hold on a sec..." still triggers the battle. Also, in the "Badland Baddies" sidequest, the Solrock in the first double battle with the Xen Grunts did nothing. Its turn was being skipped.