When i create unstable AI core in the data processor, it should have spoil time of 30s, however, the real spoil time is 20s, it looks like the AI core counts time from the beginning of its production, aka the item exists in the machine for the production time and is released after progress bar finished, eating away the spoil time.

When i create unstable AI core in the data processor, it should have spoil time of 30s, however, the real spoil time is 20s, it looks like the AI core counts time from the beginning of its production, aka the item exists in the machine for the production time and is released after progress bar finished, eating away the spoil time.
Game version: 2.0.60

I am also seeing this and sometimes get near-instant exploding unstable cores if my circuit control pauses crafting long enough.

Same, I even get craft cycles that output nothing if crafting is paused mid-craft for more than 30s. Noticed when doing circuit control for direct 1-to-1 insertion, before having any AI modules for speed, pausing the unstable core mid-craft to wait 40s for the AI core would output nothing when unpaused.