Need help with troubleshooting an H bridge circuit
Unfortunately it appears that you are using static control voltages for signalling to the driver chip and H bridge and this means that despite you fixing the connection, the bootstrap circuit (that is needed to properly drive the upper MOSFETs) will not operate. The data sheet describes it as: -


  The  DGD0506 A is a high frequency half bridge gate driver capable of  driving N channel MOSFETs in a half bridge configuration.  The floating high-side driver is rated up to 50V.


Note the words "high frequency" and this means that you control the inputs with a switching waveform such as one derived from a PWM source. The bootstrap circuits rely on the output switching continually so that it can internally generate a power rail higher than Vcc in order to turn-on the upper N channel MOSFETs.

Using the EN input for PWM will not work either - you need to use the IN input: -



As you can see, all that EN does is enable both MOSFET drives to be controlled by IN or turn both MOSFET drives off.