works incorrectly comparing a combinator

[magals]

necessary to convert the signal "O" to "A". install multiple output, but the output is nothing. Version 12.35 is the feature to work

[Loewchen]

There was a change in .13. Input count now means the number you compare the input to, in your case that would be zero and as zero is interpreted as not a signal you don't see one.
If you want the same result as in .12 you need to set the decider to output 1 and multiply that with the input of the decider combinator.

Duplicate of: viewtopic.php?f=23&t=27395, therefore NaB