ICs Powering On With Random Values
Your circuit needs to be started in a known state, and if the default is to be with the 4013's Q low and both 4017s' Q0s high, then to that end I've taken the liberty of redrawing your circuit, below, to include the Power-On-Reset using diodes to make it compatible with the rest of your diode logic.

Note that your R5 isn't needed since the diodes are being driven by a CMOS totem pole which never floats.


Just for fun I've also added in some arbitrary clocks - to make it run - and, below, included a version of your circuit - with the same functionality but simplified by eliminating all the diodes and their associated resistors and replacing them with CD4071 OR gates. The LTspice files needed to play with the circuits or run simulations, if you want to, are here