I can see it, this is no where going forum, but my problem is wired. PhoenixMiner 5.6b everything works, on PhoenixMiner 5.7b one GPU doesn't work, I'm noob, so I don't know much about setting up the files, that's why I put the log up to see if someone from here help brother out.
If you have enough patience could show up someone with more knowledge to resolve your issue, but until then you should help yourself as most of us do by teaching our self with reading new information and try doing little changes until succeed.
What I can see in your log file you have a driver issue. Look at lines 4 and 16 from your file.
2021.09.15:19:31:51.052: main Phoenix Miner 5.7b Windows/msvc - Release build
2021.09.15:19:31:51.052: main Cmd line: -pool us1.ethermine.org:4444 -pool2 us2.ethermine.org:4444 -wal .786
2021.09.15:19:31:51.060: main No CUDA driver found
[b]2021.09.15:19:31:51.857: main OpenCL driver version: 21.6-7.x[/b]
2021.09.15:19:31:51.921: main Available GPUs for mining:
2021.09.15:19:31:51.922: main GPU1: Radeon RX 5500 XT (pcie 36), OpenCL 2.0, 8 GB VRAM, 22 CUs
2021.09.15:19:31:51.922: main GPU2: AMD Radeon RX 5700 XT (pcie 43), OpenCL 2.0, 8 GB VRAM, 40 CUs
2021.09.15:19:31:51.922: main GPU3: AMD Radeon RX 5700 XT (pcie 46), OpenCL 2.0, 8 GB VRAM, 40 CUs
2021.09.15:19:31:51.923: main ADL library initialized
2021.09.15:19:31:52.535: main Eth: the pool list contains 2 pools (2 from command-line)
2021.09.15:19:31:52.535: main Eth: primary pool: us1.ethermine.org:4444
2021.09.15:19:31:52.535: main Starting GPU mining
2021.09.15:19:31:52.535: main Matched GPU1 to ADL adapter index 14 (method 1)
[b]2021.09.15:19:31:52.907: main GPU1: AMD driver 21.8.2[/b]
2021.09.15:19:31:52.907: main GPU1: Created ADL monitor for adapter 14; overdrive version: 8 (8)
[i][b][u]2021.09.15:19:31:52.907: main GPU1: using AMD driver ver 21.8.2[/u][/b][/i]
On the 1st page of this tread, devs stated they do not recommend using drivers higher than 21.8.1
Added support for AMD Windows drivers up to 21.8.1. Note that Radeon VII cards will not work with drivers 21.6.1 or higher - you need to use older drivers for proper operation of these cards
Added support for AMD Linux drivers up to 21.20 (use older drivers for Vega or Radeon VII cards as they will not work with 21.20). Note that the latest 21.30 drivers are not supported (and the initial testing shows that even the older Polars cards are not working properly with them, so avoid 21.30 for now)
I would recommend you to install and clean up your system from the drivers and after a restart, do a clean installation of any driver of your choice between 20.4.x and 21.8.1. So far for me, the best for mining is 21.3.1 except if you have RX 6600 XT cards in your rig.
If drivers does not help, try lower overclock settings until get it work.