Does not work with power bank

[Ueberspannung]

I tried an Ugreen Nexode 100W -> no problems
I tried an INIU BI-B5 20Ah powerbank. after 10sec without load the Powerbank cycles the power and does not establish PD mode again.
I tested 9V Fix and 9V PPS mode. Using an 20Ohms Resistor as load, the powerbank stays alive.
I tested one of the ebay/amazon ZY12PDN boards with the powerbank (without load) -> Works as intended

I attached 4 log files in verbose mode.

INIU_9V_Fix_load_20R.txt
INIU_9V_Fix_no_load.txt
INIU_9V_PPS_load_20R.txt
INIU_9V_PPS_no_load.txt