RSS Feed (url/feed/) is showing odd code

I’m trying to bring over a feed from one blog to another, but the original blog feed is badly screwed up with odd code.

I’m using fresh installs of 2.3.1

<!-- array(7) {
  [20]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "20"
    ["name"]=>
    string(3) "bbw"
    ["slug"]=>
    string(3) "bbw"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "21"
    ["taxonomy"]=>
    string(8) "post_tag"
    ["description"]=>
    string(0) ""
    ["parent"]=>
    string(1) "0"
    ["count"]=>
    string(2) "10"
    ["object_id"]=>
    string(2) "39"
  }
  [49]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "49"
    ["name"]=>
    string(9) "big edis"
    ["slug"]=>
    string(9) "big-edis"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "56"
    ["taxonomy"]=>
    string(8) "post_tag"
    ["description"]=>
    string(0) ""
    ["parent"]=>
    string(1) "0"
    ["count"]=>
    string(1) "7"
    ["object_id"]=>
    string(2) "39"
  }
  [50]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "50"
    ["name"]=>
    string(8) "big"
    ["slug"]=>
    string(8) "big"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "57"
    ["taxonomy"]=>
    string(8) "post_tag"
    ["description"]=>
    string(0) ""
    ["parent"]=>
    string(1) "0"
    ["count"]=>
    string(1) "8"
    ["object_id"]=>
    string(2) "39"
  }
  [71]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "71"
    ["name"]=>
    string(12) "face"
    ["slug"]=>
    string(12) "face"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "81"
    ["taxonomy"]=>
    string(8) "post_tag"
    ["description"]=>
    string(0) ""
    ["parent"]=>
    string(1) "0"
    ["count"]=>
    string(1) "1"
    ["object_id"]=>
    string(2) "39"
  }
  [69]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "69"
    ["name"]=>
    string(12) "Girl"
    ["slug"]=>
    string(12) "girl"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "79"
    ["taxonomy"]=>
    string(8) "post_tag"
    ["description"]=>
    string(0) ""
    ["parent"]=>
    string(1) "0"
    ["count"]=>
    string(1) "1"
    ["object_id"]=>
    string(2) "39"
  }
  [70]=>
  object(stdClass)(10) {
    ["term_id"]=>
    string(2) "70"
    ["name"]=>
    string(7) "Lan"
    ["slug"]=>
    string(7) "lan"
    ["term_group"]=>
    string(1) "0"
    ["term_taxonomy_id"]=>
    string(2) "80"
    ["taxonomy"]=>
    string(8) "post_tag"

[“description”]=>
string(0) “”
[“parent”]=>
string(1) “0”
[“count”]=>
string(1) “1”
[“object_id”]=>
string(2) “39”
}
[72]=>
object(stdClass)(10) {
[“term_id”]=>
string(2) “72”
[“name”]=>
string(4) “ol”
[“slug”]=>
string(4) “ol”
[“term_group”]=>
string(1) “0”
[“term_taxonomy_id”]=>
string(2) “82”
[“taxonomy”]=>
string(8) “post_tag”
[“description”]=>
string(0) “”
[“parent”]=>
string(1) “0”
[“count”]=>
string(1) “1”
[“object_id”]=>
string(2) “39”
}
}
–>`