here you can find the output of get /_cat/segments:
index shard prirep ip segment generation docs.count docs.deleted size size.memory committed searchable version compound
roger-gtw-xfb-2018.01.08 3 p 10.0.18.151 _3s 136 599 0 1.4mb 65185 true true 7.3.1 false
roger-gtw-xfb-2018.01.08 3 r 10.0.18.202 _3s 136 599 0 1.4mb 65185 true true 7.3.1 false
roger-gtw-xfb-2018.01.08 4 p 10.0.18.151 _46 150 605 0 1.5mb 70330 true true 6.6.1 false
roger-gtw-xfb-2018.01.08 4 r 10.0.18.206 _46 150 605 0 1.5mb 70330 true true 6.6.1 false
sroger-gtw-xfb-2018.07.11 0 p 10.0.18.151 _j 19 86826 0 80.3mb 333453 true true 7.3.1 false
sroger-gtw-xfb-2018.07.11 0 r 10.0.18.206 _i 18 86826 0 80.3mb 333286 true true 7.3.1 false
roger-gtw-xfb-2018.01.06 1 r 10.0.18.206 _3c 120 488 0 1.2mb 71865 true true 6.6.1 false
roger-gtw-xfb-2018.02.03 2 p 10.0.18.151 _rn 995 17499 0 37.4mb 173632 true true 7.3.1 false
roger-gtw-xfb-2018.02.03 2 r 10.0.18.206 _rn 995 17499 0 37.4mb 173632 true true 7.3.1 false
sroger-gtw-packets-2018.09.11 0 p 10.0.18.202 _l 21 228677 0 54.5mb 141997 true true 7.3.1 false
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _0 0 53584 0 17.7mb 57977 true true 7.3.1 false
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _1 1 15287 0 5.2mb 30124 true true 7.3.1 false
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _2 2 7193 0 2.6mb 20512 true true 7.3.1 false
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _3 3 115 0 80.8kb 15642 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _4 4 7 0 24.2kb 11870 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _5 5 8 0 24.5kb 11863 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _6 6 1 0 17.7kb 9470 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _7 7 1 0 19.6kb 10820 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _8 8 18 0 29.5kb 12255 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _9 9 3 0 21.9kb 11550 true true 7.3.1 true
sroger-gtw-packets-2018.09.11 0 r 10.0.18.206 _a 10 1 0 17.7kb 9470 true true 7.3.1 true
sroger-gtw-packets-2018.10.01 0 r 10.0.18.202 _5 5 1784 0 654.8kb 17034 true true 7.3.1 false
sroger-gtw-packets-2018.10.01 0 r 10.0.18.202 _6 6 6 0 19kb 9511 true true 7.3.1 true
sroger-gtw-packets-2018.10.01 0 r 10.0.18.202 _7 7 1 0 17.7kb 9470 true true 7.3.1 true
sroger-gtw-packets-2018.10.01 0 r 10.0.18.202 _8 8 1839 0 657.2kb 16277 true true 7.3.1 false
sroger-gtw-packets-2018.04.05 0 r 10.0.18.206 _r 27 297805 0 67.3mb 183627 true true 7.3.1 false
sroger-gtw-packets-2018.04.06 0 p 10.0.18.151 _t 29 332505 0 74.8mb 239443 true true 7.3.1 false
sroger-gtw-packets-2018.04.06 0 r 10.0.18.206 _t 29 332505 0 74.8mb 239443 true true 7.3.1 false
sroger-gtw-packets-2018.04.07 0 r 10.0.18.202 _m 22 237588 0 53mb 134388 true true 7.3.1 false
sroger-gtw-packets-2018.04.07 0 p 10.0.18.206 _n 23 237588 0 53mb 134388 true true 7.3.1 false
sroger-gtw-packets-2018.04.08 0 p 10.0.18.151 _e 14 262372 0 57.6mb 172825 true true 7.3.1 false
sroger-gtw-packets-2018.04.08 0 r 10.0.18.206 _e 14 262372 0 57.6mb 172825 true true 7.3.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _0 0 10747 0 16.9mb 105922 true true 7.2.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _1 1 780 0 1.3mb 62571 true true 7.2.1 true
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _5 5 11 0 105.4kb 57209 true true 7.2.1 true
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _9 9 10515 0 16.6mb 107054 true true 7.2.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _a 10 1175 0 1.9mb 64572 true true 7.2.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _b 11 10464 0 16.4mb 100177 true true 7.2.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _c 12 1134 0 1.9mb 64580 true true 7.2.1 false
shrink_roger-gtw-xfb-2018.04.08 0 p 10.0.18.151 _e 14 7 0 96.8kb 57177
I found somewhere (I don't remember honestly where), that in these cases I should forcemerge the original index but probably it's not correct.