Huey in the BISQ Forum recommended I escalate this issue/error. I am trying to add an altcoin account, XMR, and am using a valid address but it is screening it out due to thinking it starts with a 13.
"Address is not a valid XMR address! invalid address prefix 13"
Thanks for any help and sorry if this is in the wrong place, I'm new here,
Attaching screenshot.

Thanks for your bug report!
Version 1.1.5
4GdoN7NCTi8a5gZug7PrwZNKjvHFmKeV11L6pNJPgj5QNEHsN6eeX3DaAQFwZ1ufD4LYCZKArktt113W7QjWvQ7CWD1FFMXoYHeE6M55P9
or I also tried (4GdoN7NCTi8a5gZug7PrwZNKjvHFmKeV11L6pNJPgj5QNEHsN6eeX3DaAQFwZ1ufD4LYCZKArktt113W7QjWvQ7CW82yHFEGvSG3NJRNtH)
Happens every time I try it.
Thanks battleofwizards
I can confirm the issue.
Both of your addresses are accepted by Monero GUI but not accepted by Bisq.
@ripcurlx That might be worth to try to get into the release.
Buggy validation is a pain....
@xiphon Could you have a look at the Monero validation?
Address validation in Bisq does not support the so called integrated addresses.
As a temporary workaround please use a subaddress.
As a sidenote, in Monero subaddresses are recommended over integrated addresses (but we definitely should support both).
I will submit a fix very soon. Stay tuned.