In reference to Diana's changing into Wonder Woman while wearing a nightgown then arriving at work in her work clothes, Wonder Woman has been seen transforming into various outfits via her transformation "spin" in various other episodes so it is not necessarily a continuity "goof" to imagine that she might also be able to do so with her Diana Prince outfits.
The show opens with Diana being awakened by a phone call from headquarters and says she'll be there momentarily. She transforms from her nightgown and robe into Wonder Woman and races to the office. The next scene shows her transformed back into Diana Prince well put together in full makeup and a black dress - not her nightgown.
The exact same sequence of Wonder Woman jumping over bushes and then onto a rooftop to reach the Queen's bedroom balcony is used twice. The only difference is that the second time a blue filter has been added to make it seem like night time.
When Wonder Woman tosses her golden magic lasso up to the roof of the large room with the safe down below to secure it so that she can lower herself down to the safe without touching the pressure sensitive floor, in the very next shot it is no longer her slender golden lasso but a much thicker brown or gray rope which she and the thief actually use to lower her down.
Introduced earlier in the series, lamps flash in Diana's apartment flash when she receives a secured call from IADC. The flashing represents the hidden phone "ringing"; yet the flashing continues even after she picks up the phone.
When Diana speaks into the phone at the start of the episode her mouth does not match the spoken dialogue.
Queen Kathryn is meant to be from Boston but has a very strong English accent (as played by English actress Juliet Mills).