Cyclone III multi-device AS problem

I have two identical EP3C16Q240C8N in multi-device AS scheme.

First, I've soldered master and EPCS16 and checked it is accessible through JTAG and AS.

It was fine, so I've soldered slave device, and now both of them refuse to work.

The schematic is as show in cyclone 3 handbook, figure 9-4, slave in PS mode (all MSEL = 0).

Both devices has 3.3V I/O, all pullups is to this voltage.

I have buffers (74LVC1G125) on AS DATA and AS DCLK lines to the slave device.

Both devices accessible through JTAG, but I can program only the master because of this . But even when master is programmed successfully, it can't get into user mode beacuse of slave's CONF_DONE (I assume).

I've double and triple checked all connections. I assume, because they both visible through JTAG, power is ok.

Appreciate for any help.