Arc Editor public beta 17

[matt]

1.0 (build 40), 2026-03-10 15:34 (Bangkok)

Bug Fixes

• Fixed activity classifier and model updates stalling indefinitely due to a single hung CoreML prediction blocking all activity type work (BIG-335)
• Fixed timeline processing being unnecessarily cancelled and restarted when navigating into item details or activity type selection, causing slower timeline resolution (BIG-336)
• Fixed place scoring producing near-zero scores for places with limited visit history, due to KDE bandwidth collapsing when histogram data is concentrated in a single bin (BIG-332)

Improvements

• Current visits are no longer penalised for being shorter than a place’s typical visit duration — a 2-minute-old visit at a place expecting 60-minute stays now receives neutral scoring until enough time has passed (BIG-76)
• Improved place proximity scoring with Gaussian decay, providing better separation between overlapping places (BIG-332)

Join the Arc Timeline Editor beta

[BDein]

A couple of issues:

1. Map: Is it possible to change map type?, and also dark or light? as here in the evening it’s really hard to read.

2. Activity: when on any given day, and clicking on Activity I’d expect it to show the actual I was on, but no, its on the date it was last used, that’s a bit awkward like shown on the two attached pictures

   
   

[BDein]

Unknown place!

I have this (these) unknown place(s) that it doesn’t seem to be able to deal with, which is actually just one place I stayed for s party almost all day.

Can I do anything to resolve this issue?

[Hutima]

I have a bug where no tracks are being loaded

I also get the unknown location for everything bug noted above but it’s been a few betas for that

It’s very bugged and seems to be triggered when there’s a say with a lot of unknowns