File: smart-contracts/NextGenCore.sol
213:     function burnToMint(uint256 mintIndex, uint256 _burnCollectionID, uint256 _tokenId, uint256 _mintCollectionID, uint256 _saltfun_o, address burner) external {
214:         require(msg.sender == minterContract, "Caller is not the Minter Contract");
215:         require(_isApprovedOrOwner(burner, _tokenId), "ERC721: caller is not token owner or approved");
216:         collectionAdditionalData[_mintCollectionID].collectionCirculationSupply = collectionAdditionalData[_mintCollectionID].collectionCirculationSupply + 1;
217:         if (collectionAdditionalData[_mintCollectionID].collectionTotalSupply >= collectionAdditionalData[_mintCollectionID].collectionCirculationSupply) {
218:             _mintProcessing(mintIndex, ownerOf(_tokenId), tokenData[_tokenId], _mintCollectionID, _saltfun_o);
219:             // burn token
220:             _burn(_tokenId);
221:             burnAmount[_burnCollectionID] = burnAmount[_burnCollectionID] + 1;
222:         }
223:     }
File: smart-contracts/NextGenCore.sol
227:     function _mintProcessing(uint256 _mintIndex, address _recipient, string memory _tokenData, uint256 _collectionID, uint256 _saltfun_o) internal {
228:         tokenData[_mintIndex] = _tokenData;
229:         collectionAdditionalData[_collectionID].randomizer.calculateTokenHash(_collectionID, _mintIndex, _saltfun_o);
230:         tokenIdsToCollectionIds[_mintIndex] = _collectionID;
231:         _safeMint(_recipient, _mintIndex);
232:     }
    function burnToMint(uint256 mintIndex, uint256 _burnCollectionID, uint256 _tokenId, uint256 _mintCollectionID, uint256 _saltfun_o, address burner) external {
        require(msg.sender == minterContract, "Caller is not the Minter Contract");
        require(_isApprovedOrOwner(burner, _tokenId), "ERC721: caller is not token owner or approved");
        collectionAdditionalData[_mintCollectionID].collectionCirculationSupply = collectionAdditionalData[_mintCollectionID].collectionCirculationSupply + 1;
        if (collectionAdditionalData[_mintCollectionID].collectionTotalSupply >= collectionAdditionalData[_mintCollectionID].collectionCirculationSupply) {
-           _mintProcessing(mintIndex, ownerOf(_tokenId), tokenData[_tokenId], _mintCollectionID, _saltfun_o);
            // burn token
            _burn(_tokenId);
            burnAmount[_burnCollectionID] = burnAmount[_burnCollectionID] + 1;
+           _mintProcessing(mintIndex, ownerOf(_tokenId), tokenData[_tokenId], _mintCollectionID, _saltfun_o);
        }
    }
