The same thing happens to me, at first. Same exact symptoms.
i have an OSPI version 2.
the fix was to load the ad card with and boot to noobs, then configure everything to connect reliably to the network, then use the command line to get the OSPI app.
i think that the 1.4 image may be incomparable with the new proc on the ver 2 pi.
i can’t find the manual instruction that I used. maybe Samer or Ray could provide it?