I'm a player from China and the mod Igot is Chinese version, so there may be some wrong names.
When the belt has a speed of 256r/min, the entity detector may not work correctly. An entity detector with a filter can only distinguish one kind of item. Maybe there's more items which can't work correctly which i didn't find.
Sometimes the machine would work without getting energy. It often occurs when I disconnect the machine from the other part of the net.
When a mechanical press works above the belt with a basin, it can only produce one item in one time. I wanna know if it is designed like that. I'm creating an production line for gold and that is really bothering me.
I like this mod very much, and it is the first mod I got which added items. Wish the mod could be better and better in the future.

Couple things:

• 0.2.3 is ancient, most issues have been fixed since then
• bulk pressing as it existed earlier can be reactivated by config, other than that the press pressing single plates is intended
• belt observers have been moved to other blocks, entity detection has been removed. You can still use tripwires though. Those are also reliable even on high speed belts
• belts that are being linked from one block to another get a tag that specifies where you started linking them. A half-linked belt won't stack with unlinked belts. This is indeed a possible improvement and i will bring it up with the team.

There's another bug that the belt sometimes can not be put in one cell in the chest even if there is less belt than 64

I discovered that if there's liquid in front of a mechanical-piston, the piston won't work

the version I'm using is 0.2.3

I discovered that if there's liquid in front of a mechanical-piston, the piston won't work

Could you specify how it 'wont work' and which liquids exactly? As you can see, water and lava should behave as expected, so this might be a mod incompatibility.