Just trying again is absolutely fine. Our main concern was whether we needed to increase the size to 26 to account for the loss of keys. After doing the math,

Just trying again is absolutely fine. Our main concern was whether we needed to increase the size to 26 to account for the loss of keys. After doing the math, a 25 digit random string has a ~5% chance of containing one of 150 three or four character inappropriate substrings. That 5% loss isn't that big of a deal. But we had to figure out the math as part of due diligence before shipping.