Push button ON/OFF + Soft start v.3

This is a revamping of an old project: "Two versions of soft sart". There were reports in the comments that the circuit doesn't always work. I have tried myself on a breadboard and indeed - the schematic works with chips from Nexperia and doesn't work with chips from other manufacturers. The problem is in the input stage of the schematic - the push button.  There is a capacitor in parallel to smooth the bouncing of the contacts but the pulse gets too long and is registered by 4027 clock input as more than 1 impulse. Without the capacitor schematic will work if the push button is high quality, otherwise, again the 4027 will detect more than 1 input signals. To combat this problem I tried different methods an here I present two of them.

Two versions of soft start

UPDATE: 08.02.2019
There is upgraded version of this project: Push button ON/OFF + Soft start v.3
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 My new project is something that is useful when creating power amplifier with toroidal transformer. Usually the starting (inrush) current is very high for a brief moment until the smoothing capacitors are charged. This is stressful for the capacitors, bridge rectifiers and the transformer itself. Also the fuse may blow.
The soft start circuit is used to limit the starting current to acceptable level. This is achieved by connecting the transformer to the mains via a resistor which is shorted with relay contacts a few moments later.

I decided to combine a soft start schematic with push button toggle switch schematic to create a module ready to be used in a power amplifier or some other power consumer.

I experimented with two different schematics - one with CMOS logic 4027 and other with dual timer NE556.