Oops where did my limit switches go

[Action-KAT]

Has any one had a problem like this before
Last night I started putting some T track on my bed,
booted my baby up and tested my switches as I always do as a startup check,
found my limit switches were not working.!

using a Gecko G540 & limits in series all worked before never a problem.
my home switches still work & these are the same just wired the other way.
after testing bits n bobs I tried moving the input wire from pin 1 to pin 4 on my G540 & found the switches worked fine !

hope nothings blown haven't even finished building yet only run a couple of tests.
Anyone have any ideas what's up,
I will check what settings etc on my setup later
KAT

[Action-KAT]

Even more confused now,
came home tonight to finish setting in my t track & now the limits have stop working again in the different G540 pin.
carried on cutting the bed & had to turn the controller off a couple of times.
Turn it on again & now the work again !

at a loss what I should be looking for,
I don't get any false tripping & not triggered on startup so this should mean no break in the cabling.

any ideas where to start looking.?
I'll finish the T track & then earth all the connections etc. & see if that helps
cheers KAT

[MattTheNoob]

What kind of switches are they? Are these 2-wire mechanical switches or a prox switch of some sort?

Once you cycle power a few times and they start working, do they stay working? i.e. is it the power cycle that is breaking / fixing them?

I certainly don't have the answer. I'm just throwing out fodder for the debug effort.