Why Time Quest "derive_pll_clocks" does not extend all base clock requirements?

Hi,

myproject sdc file looks like this:

# =============================================================

create_clock -name {clk75m} -period 13.333 -waveform { 6.666 13.333 } [get_ports {CLK1}]

create_clock -name {clk59m125} -period 16.912 -waveform { 8.456 16.912 } [get_ports {CLK2}]

derive_pll_clocks -create_base_clocks -use_net_name# (IMPORTANT! Input clock to the PLL is ONLY CLK1)

set_clock_groups -asynchronous

-group [get_clocks {clk75m}]

-group [get_clocks {clk59m125}]# ==============================================================

Time Quest reports setup violations in which the launching clock is CLK2 and the latching clock is

PLL's output clock (derived from CLK1).

Why TimeQuest disregards the set_clock_groups -asynchronous on a derived clock?