The bond appears to be fine, it's the attached paperwork that was rejected.
"The cause for the rejection, according to the New York County Supreme Court website, is because the requisite paperwork lacked a current financial statement.
. . .
"It is also missing the name of his attorney-in-fact. Trump will have a chance to resubmit his request."
So... not "filled with filing errors"... It was returned for correction because it missed an attachment, probably on purpose to conceal Trump's property values. The original posts sounds like the actual bond issue failed somehow, but it was just the court asking for more details.
When you say the bond was successfully issued, it doesn't mean much if it's not accepted. If you read thr court's note there is a list of items he must provide.