What happen to the blockchain?

https://blockexplorer.graft.network/

height   age [h:m:s]   size [kB]   tx hash   fees   outputs   in(nonrct)/out   ring size   tx size [kB]
65940   01:27:56   0.12   8730a4129b067d1c97dc61930b6f5b49b13bd5fedac5780ad1cafec98beaf496   N/A   1706.446   0(0)/1   N/A   0.12
65939   00:32:51   158.34   603e2cf025b1d22991a2b8a5d9ed822db2d4cb95f7912ef0bb1da4942a738210   N/A   1710.818   0(0)/1   N/A   0.10

block 65940 is older than block 65939.

[edit] block 65940's age was decreased and increasing now(see below).

65941   01:52:37   227.17   53674b9a40f1a31957770dd96ad62fc3965ec3d021c0a8e15f91bc3ffd41f9aa   N/A   1708.027   0(0)/1   N/A   0.10
2902f5c7b0807608e2ff6ba3a1415881abca2e21e8411fdaba1efd9d5fef2a21   0.096   ?   2(0)/2   5   13.21
b98d52d89a0b46ca15655119561e6e7ccc9b135ae5fd8597d62680c44f49f702   0.096   ?   2(0)/2   5   13.21
453ee6291ee54a015b160f99fe1ac6361c39964f47f70e394685fde9d702686d   0.096   ?   2(0)/2   5   13.21
b1939466f56fdb1b8e856df83f495f13f57a6118b6d3af23b19badfb0bf45ced   0.096   ?   2(0)/2   5   13.21
c993550c79cbdc9c0edb10ea170e59938ae493d27cd71056fe4749f700d7fe71   0.096   ?   2(0)/2   5   13.21
5557833471584bfcaf0cf29ea1eecd623b4e2613b9ed0c7ac05c05cc1fe3067a   1.106   ?   2(0)/26   5   161.00
65940   00:00:24   0.12   8730a4129b067d1c97dc61930b6f5b49b13bd5fedac5780ad1cafec98beaf496   N/A   1706.446   0(0)/1   N/A   0.12
65939   02:01:11   158.34   603e2cf025b1d22991a2b8a5d9ed822db2d4cb95f7912ef0bb1da4942a738210   N/A   1710.818   0(0)/1   N/A   0.10


Can you check the blockexplorer?

I found the odd ones below.(please, see the ages)

65912   01:42:38   0.09   5e8ca460e2045ef048123abd4a5f41eba31b9990a4836a48464b47240fadb922   N/A   1706.537   0(0)/1   N/A   0.09
65911   00:16:06   145.33   d1c0aeffbef5ed71a49f9db31938d1e2ba77c06d6b7f72c15429d225636d07fa   N/A   1707.551   0(0)/1   N/A   0.12
1576ee22969bfed50a58b085d274b113c8c039ccc559cc6e8a102d494126c98b   0.096   ?   2(0)/2   5   13.21
d6caf4073c1f3776bf537903fe5ae2f271e14da88387cd9e111679d2a458b9dd   0.096   ?   2(0)/2   5   13.21
4e6584bcc306e9085ccc912e48850082aebb533970ba9ba62e7590ab2f8dd8ee   0.096   ?   2(0)/2   5   13.21
44a8e91842c515196cc2c74f9e953662c64988cc95a20738702b8163ce97c04a   0.724   ?   2(0)/17   5   105.58
65910   00:15:00   0.12   373f631138e70a4c19de91ad468f50f3102593dc49e139a53eb74883ac3f50fd   N/A   1706.544   0(0)/1   N/A   0.12
65909   01:44:08   0.10   94cf8101e11dc6989b0df885c04267f1406914193cffa464acd7486ab32a49eb   N/A   1706.547   0(0)/1   N/A   0.10