Case:
Viewing the inventory while doing a long manual mining for a resource.

Expected behaviour:
Opening the inventory (E- window) does not affect the current mining progress.

Real behaviour:
Mining progress resets when inventory window opens.

Replicable:
100%

Build:
15.6 Mac OS X

System:
Sierra

Certain mechanic equipment (belts, inserters, assemblers, plants, rails , everything that works in cycles or passes) should need resources to maintain.
After a number of working cycles/passes these items may need application of special maintaince packs to keep current level of performance.
There may ...

At a certain point when all the techs are researched, lab industry becomes useless. Meanwhile, providing a balanced production of science packs is one of the core challenges.
Suggestion:
Make technologies that would endlessly improve certain stats in slight increments. Such improvements may need ...

The idea was to have the possibility to organize filled boxes at the storage.
Car takes more space and is hard to drive in tight layouts without incidental damage.

Why computing electricity every tick?
There is no need to trace every unit of electricity.
Just make computation when connecting/disconnecting poles and power consumers.

Movable box (trolley?) is a modified stationary box.
Player can drag a movable box within a characters' reach without the need to pick it up or its contents.

Electric network elements should have limited throughput.
And a power loss.
Energy transportation is not free.

Transport belts should require energy to transport items.
This could be done by powering transport belts. Each transport belt element consumes a bit of energy when transporting an item. Transport belt elements can be powered via electric network or by a powered adjacent transport belt element. At ...