Quote from: roboshark on January 18, 2018, 10:02:12 AM

What are these duplicate shares?
High rejection rate suddenly.

[INFO] [2018-01-18T11:59:09+02:00] [GPU 5] Speed: 302.04 Sol/s 160.07 Nonce/s
[WARN] [2018-01-18T11:59:16+02:00] Rejected share #645 ([22,"duplicate share"])
[INFO] [2018-01-18T11:59:16+02:00] [GPU 0] Speed: 719.80 Sol/s 385.21 Nonce/s
[INFO] [2018-01-18T11:59:17+02:00] [GPU 1] Speed: 519.35 Sol/s 278.28 Nonce/s
[INFO] [2018-01-18T11:59:19+02:00] [GPU 2] Speed: 307.09 Sol/s 163.84 Nonce/s
[INFO] [2018-01-18T11:59:20+02:00] Accepted share #646
[INFO] [2018-01-18T11:59:20+02:00] [GPU 6] Speed: 306.90 Sol/s 164.35 Nonce/s
[INFO] [2018-01-18T11:59:21+02:00] Accepted share #647
[INFO] [2018-01-18T11:59:23+02:00] [GPU 3] Speed: 305.92 Sol/s 163.75 Nonce/s
[INFO] [2018-01-18T11:59:30+02:00] [GPU 4] Speed: 518.88 Sol/s 274.61 Nonce/s
[INFO] [2018-01-18T11:59:35+02:00] [GPU 7] Speed: 305.21 Sol/s 162.63 Nonce/s
[INFO] [2018-01-18T11:59:35+02:00] Total 3285.18 Sol/s 1752.74 Nonce/s Accepted shares 629 Rejected shares 15
[INFO] [2018-01-18T11:59:39+02:00] [GPU 5] Speed: 302.29 Sol/s 160.07 Nonce/s
[WARN] [2018-01-18T11:59:42+02:00] Rejected share #648 ([22,"duplicate share"])
[INFO] [2018-01-18T11:59:46+02:00] [GPU 0] Speed: 711.33 Sol/s 379.96 Nonce/s
[INFO] [2018-01-18T11:59:47+02:00] [GPU 1] Speed: 515.11 Sol/s 275.02 Nonce/s
[INFO] [2018-01-18T11:59:49+02:00] [GPU 2] Speed: 304.38 Sol/s 162.63 Nonce/s
[INFO] [2018-01-18T11:59:50+02:00] [GPU 6] Speed: 304.11 Sol/s 163.04 Nonce/s
[INFO] [2018-01-18T11:59:53+02:00] [GPU 3] Speed: 304.17 Sol/s 162.60 Nonce/s
[INFO] [2018-01-18T11:59:55+02:00] Accepted share #649

17 rejected shares in 5 minutes.

This is a known issue in 5.1.0 and it will be addressed in the next release.