SOLVED. YA Fantasy about a perfect town where everyone and everything is perfect except one girl named Jane/June - NOT 'A Place Called Perfect' read in 2018/2019. [s]

[Raevan]

Hi Hi!
I read this back in 2018/2019, but forgive me I don't remember when it was exactly published.
[Hint; I am pretty sure the title is an adjective.]
I don't really remember the plot, but it did have a pretty vague ending (it wasn't sad but I wouldn't call it happy either, it had something to do with the protags dog.)
The protags only 'friends' are the trouble-making twins (who if I remember correctly were expelled from the perfect school everyone else goes to. Yes, they go to the public school and those 3 are the only students.)

Here are some other details I remember from the book;
-The protags name is either Jane/June (I think Jane)
-Jane is in middle school.
-She has a big brother who paints(?) and a little sister named Adelaide who is a walking calculator.
-Jane is often forgotten, her neighbours always forget that they've known each other before and act as if she's new in town.
-Her grandmother is the mayor(?)
-Her grandfather is similar to her, he is often forgotten.
-Her dad is an architect.
-Her teacher forgets her and gives her the same assignment every single day (if I'm correct, it's about clouds.)
-She always wanted a dog/puppy and she got one at some point in the book.
-Her grandfather was put into jail at some point and she and the twins broke him out.
-Somebody (either the grandpa or the twins, I forgot) broke the towns 'perfect streak'
-The cover is very colourful
-The cover is full of words; "Welcome to [the title] where everyday is [the title] and everyone is [the title] except Jane!" (rough remembrance)

That's all I remember, any help on finding this book is very much appreciated. Thank you so much!!

[Rainbowheart]

Kinda sounds a little like Eventown and Now Entering Addamsville, but not exactly.

[Marisa]

Remarkable?

[Raevan]

Marisa wrote: "Remarkable?"

Yes! That's the one! Thank you so much and I'm really really sorry about the very late reply :")