I wanted to report an issue I ran into on v5.2e for mixed-gen ETH mining on one XFX RX 5700 8GB + one XFX RX 480 8GB + one MSI RX 480 8GB on Ubuntu 18.04.4 LTS (via minerstatOS) with amdgpu-pro v19.30 drivers. When I upgraded to v5.2e, I saw my RX 5700 take approximately an hour to build its DAG file, and then yield 0 hashrate, and the two RX 480s only produced about a third of their normal hashrate. I previously saw the same behavior with all PhoenixMiner v5.1x versions, as well.
Rolling back to v5.0e immediately resolves the issue without a reboot. I have used a few versions of the PhoenixMiner for about ten months on this mixed-gen rig without issue, so this has been something introduced after v5.0e. In case it's any help, I am including a few log excerpts, though I never saw any suspicious messages or error logs to report.
v5.2e log (note the miner uptime versus the DAG generation progress)2020.11.23:16:24:05.279: eths Eth: New job #f7c9706f from us1.ethermine.org:4444; diff: 4000MH
2020.11.23:16:24:05.536: GPU1 GPU1: DAG 92%
2020.11.23:16:24:05.866: main
2020.11.23:16:24:05.866: main *** 0:43 *** 11/23 16:24 **************************************
2020.11.23:16:24:05.866: main Eth: Mining ETH on us1.ethermine.org:4444 for 0:43
2020.11.23:16:24:05.866: main Eth speed: 22.623 MH/s, shares: 17/0/0, time: 0:43
2020.11.23:16:24:05.866: main GPUs: 1: 0.000 MH/s (0) 2: 11.801 MH/s (11) 3: 10.822 MH/s (6)
2020.11.23:16:24:05.866: main Eth: Accepted shares 17 (0 stales), rejected shares 0 (0 stales)
2020.11.23:16:24:05.866: main Eth: Incorrect shares 0 (0.00%), est. stales percentage 0.00%
2020.11.23:16:24:05.866: main Eth: Maximum difficulty of found share: 56.2 GH (!)
2020.11.23:16:24:05.866: main Eth: Average speed (5 min): 22.595 MH/s
2020.11.23:16:24:05.866: main Eth: Effective speed: 25.98 MH/s; at pool: 25.98 MH/s
2020.11.23:16:24:05.866: main
...
2020.11.23:16:27:02.493: eths Eth: New job #c61bb84f from us1.ethermine.org:4444; diff: 4000MH
2020.11.23:16:27:02.888: GPU1 GPU1: DAG 98%
2020.11.23:16:27:04.976: main GPU1: 45C 91% 53W, GPU2: 60C 100% 76W, GPU3: 50C 100% 70W
GPUs power: 199.2 W
2020.11.23:16:27:06.380: main
2020.11.23:16:27:06.380: main *** 0:46 *** 11/23 16:27 **************************************
2020.11.23:16:27:06.381: main Eth: Mining ETH on us1.ethermine.org:4444 for 0:46
2020.11.23:16:27:06.381: main Eth speed: 22.623 MH/s, shares: 18/0/0, time: 0:46
2020.11.23:16:27:06.381: main GPUs: 1: 0.000 MH/s (0) 2: 11.802 MH/s (11) 3: 10.821 MH/s (7)
2020.11.23:16:27:06.381: main Eth: Accepted shares 18 (0 stales), rejected shares 0 (0 stales)
2020.11.23:16:27:06.381: main Eth: Incorrect shares 0 (0.00%), est. stales percentage 0.00%
2020.11.23:16:27:06.381: main Eth: Maximum difficulty of found share: 56.2 GH (!)
2020.11.23:16:27:06.381: main Eth: Average speed (5 min): 22.618 MH/s
2020.11.23:16:27:06.381: main Eth: Effective speed: 25.73 MH/s; at pool: 25.73 MH/s
2020.11.23:16:27:06.381: main
...
2020.11.23:16:27:48.656: eths Eth: Received: {"id":6,"jsonrpc":"2.0","result":true}
2020.11.23:16:27:51.512: main
2020.11.23:16:27:51.512: main *** 0:47 *** 11/23 16:27 **************************************
2020.11.23:16:27:51.513: main Eth: Mining ETH on us1.ethermine.org:4444 for 0:47
2020.11.23:16:27:51.513: main Eth speed: 22.624 MH/s, shares: 19/0/0, time: 0:47
2020.11.23:16:27:51.513: main GPUs: 1: 0.000 MH/s (0) 2: 11.801 MH/s (12) 3: 10.823 MH/s (7)
2020.11.23:16:27:51.513: main Eth: Accepted shares 19 (0 stales), rejected shares 0 (0 stales)
2020.11.23:16:27:51.513: main Eth: Incorrect shares 0 (0.00%), est. stales percentage 0.00%
2020.11.23:16:27:51.513: main Eth: Maximum difficulty of found share: 56.2 GH (!)
2020.11.23:16:27:51.513: main Eth: Average speed (5 min): 22.608 MH/s
2020.11.23:16:27:51.513: main Eth: Effective speed: 26.73 MH/s; at pool: 26.73 MH/s
2020.11.23:16:27:51.513: main
2020.11.23:16:27:52.592: eths Eth: New job #aaa008e3 from us1.ethermine.org:4444; diff: 4000MH
2020.11.23:16:27:53.583: GPU1 GPU1: DAG 100%
2020.11.23:16:27:53.672: GPU1 GPU1: DAG generated in 2841.7 s (1.4 MB/s)
2020.11.23:16:27:53.673: GPU1 GPU1: Using Ethash OCL kernels (gfx1010; -clkernel 1)
2020.11.23:16:27:53.673: GPU1 GPU1: no -gt value specified, switching to auto-tune
2020.11.23:16:27:53.673: GPU1 GPU1: starting auto-tune process
v5.0e log (note the functional GPU1 and the much better hashrates for GPU2 and GPU3)Eth: New job #169100e2 from us1.ethermine.org:4444; diff: 4000MH
Eth speed: 117.353 MH/s, shares: 5/0/0, time: 0:04
GPUs: 1: 57.140 MH/s (2) 2: 30.881 MH/s (2) 3: 29.332 MH/s (1)
GPU1: 57C 89% 130W, GPU2: 71C 100% 87W, GPU3: 61C 100% 86W
GPUs power: 303.0 W