My L-Twoo ER9 hydraulic front brake recently went spongy.

I installed the groupset brand new last August and it has been fine up until a few weeks ago.

I was out on a ride when I pressed the front brake and the brake was spongy.

When I got home I bled it and got air of it.

All was ok after that for a few weeks until it happened again?

I did make sure to bleed it properly but there is air in system again.

I have the V3 ER9 groupset with the seals on the air screws on the shifters.

Do you guys think something is drawing in air somewhere or maybe I’ve missed some air trapped in the system?

I have bled Shimano brakes more than a few times successfully,so it’s not like I’m inexperienced with hydraulic brakes bleeding?

Myself and my friend both have L-twoo electronic road groupset.

Both of us have the same issue of left shifter battery drain causing front mech to not work.

Is this a common issue and is there a fix?

So I have ltwoo ER9 v3 11 speedwith a 50/34 senicx PR3 crankset (43.5 chainline). I can't get rid of chain rub especially on biggest rear cog and small front gear. The FD seems to not got fully inboard. Even with the lowest limit (2), it seems to not fully go to the max as I can push the cage and it moves to make some space.
Can'T figure out a solution, either it rubs on the 34/34 combo or the 9th gear and small front chainring combo. Can't have both work.
Anyone had this issue? I followed every video instructions and manual for cage alignement and tryed 1000x to reposition it with slight variation without succes.
thanks

I also am having problems with the front mech adjustment. For some reason the app doesn’t adjust when I try to + or - them?

Not sure what the problem is, but maybe try restoring factory defaults in the app. Make sure to write down your rear and front shift tuning numbers beforehand. If that doesn't work try a hard reset on the RD by holding the button down for a prolong period of time. Maybe about 30 seconds.

Was advised by supplier to hold rear derailleur button under green light comes in then re pair.

Which I have done and didn’t resolve issue.

I also did what you suggested and hard reset rear mech which also didn’t work.

I notice the green light blinks when I adjust anything on the app. It also blinks when I adjust the speed setting but it doesn’t adjust on the app.

I suspect it’s a glitch in the app.

Is it possible to view front shifters battery levels anywhere?

I have just ordered ER9 from L-twoo factory shop on Ali express.

Seems there is a factory shop and an official shop?