I'm using 7 x RX 6800's.
Will try again using July AMD driver.
You're right, the issues happen on DAG recreation. I'll try your tip with the -eres flag as I haven't gotten anything stable for more than a day or so.
It was the Bitcointalk forum that inspired us to create Bitcointalksearch.org - Bitcointalk is an excellent site that should be the default page for anybody dealing in cryptocurrency, since it is a virtual gold-mine of data. However, our experience and user feedback led us create our site; Bitcointalk's search is slow, and difficult to get the results you need, because you need to log in first to find anything useful - furthermore, there are rate limiters for their search functionality.
The aim of our project is to create a faster website that yields more results and faster without having to create an account and eliminate the need to log in - your personal data, therefore, will never be in jeopardy since we are not asking for any of your data and you don't need to provide them to use our site with all of its capabilities.
We created this website with the sole purpose of users being able to search quickly and efficiently in the field of cryptocurrency so they will have access to the latest and most accurate information and thereby assisting the crypto-community at large.
File: PhoenixMiner_5.7b_Windows.zip
===================================
SHA-1: 6d55e616ea06896b6d6afde60c6cdfbac67260f0
SHA-256: febcc9abbbf5426c6caf7004167fb86a1d384dfd14966ca67b4eb55bdcfeb97e
SHA-512: 5d7a1899efae0e79963cdc6cbf2117283704a0e85539fc353b7ea291a028ba70b6df60422bcb3b97f1b7636133dc16c30cb075a2cfa95f3f4e06e8d35309db28
File: PhoenixMiner_5.7b_Linux.tar.gz
====================================
SHA-1: 6fb818bd8d96321cd5881557994755c3a9021426
SHA-256: b56da6d413b6c91716c8d97ddf75dab1b1bbd2ca3183486286097e8349019917
SHA-512: ea477315f74424489cf1048c4e1927ff8e50c177d9f14258f62ef0db5a893d96392bbfdd5d8326ed7d952593fafa8be390329f21672d76ae679762ac26b15989
File: PhoenixMiner_NVRTC_Windows.zip
====================================
SHA-1: ff6fa5e018adbd52caf631c42b7c2fac7ce48a51
SHA-256: 8087757169405d51ea8ba818347fb05d0450aef985c29272165070346eb5a54a
SHA-512: 7b2d832f7f40578bb1f501d5174467f5ae06612e601dab769fd56d39da48a471b18c6373435a485155f70fec4017d8378797bf1e1dfe5d62fee30fa6a1d992c4
File: PhoenixMiner_5.7b_Windows.zip
===================================
SHA-1: 6d55e616ea06896b6d6afde60c6cdfbac67260f0
SHA-256: febcc9abbbf5426c6caf7004167fb86a1d384dfd14966ca67b4eb55bdcfeb97e
SHA-512: 5d7a1899efae0e79963cdc6cbf2117283704a0e85539fc353b7ea291a028ba70b6df60422bcb3b97f1b7636133dc16c30cb075a2cfa95f3f4e06e8d35309db28
File: PhoenixMiner_5.7b_Linux.tar.gz
====================================
SHA-1: 6fb818bd8d96321cd5881557994755c3a9021426
SHA-256: b56da6d413b6c91716c8d97ddf75dab1b1bbd2ca3183486286097e8349019917
SHA-512: ea477315f74424489cf1048c4e1927ff8e50c177d9f14258f62ef0db5a893d96392bbfdd5d8326ed7d952593fafa8be390329f21672d76ae679762ac26b15989
File: PhoenixMiner_NVRTC_Windows.zip
====================================
SHA-1: ff6fa5e018adbd52caf631c42b7c2fac7ce48a51
SHA-256: 8087757169405d51ea8ba818347fb05d0450aef985c29272165070346eb5a54a
SHA-512: 7b2d832f7f40578bb1f501d5174467f5ae06612e601dab769fd56d39da48a471b18c6373435a485155f70fec4017d8378797bf1e1dfe5d62fee30fa6a1d992c4
PhoenixMiner.exe -amd -eres 1 -coin ETH -dcoin blake2s -pool DAGGERHASHIMOTO.eu-west.nicehash.com:3353 -wal ###########################.########### -pass x -proto 4 -dpool blake2s.eu.mine.zpool.ca:5766 -dwal ################# -dpass ########,c=BTC -log 0 -wdog 0 -cdmport 4002 -gpus 2
...
GPU1: DAG generated in 10.9 s (412.3 MB/s)
GPU1 doesn't support Blake2s dual mining
GPU1: Using Ethash OCL kernels (Ellesmere; -clkernel 1)
GPU1: no -gt value specified, switching to auto-tune
GPU1: starting auto-tune process
Eth: New job #cb4e3547 from DAGGERHASHIMOTO.eu-west.nicehash.com:3353; diff: 979MH
...
PhoenixMiner.exe -amd -eres 1 -coin ETC -dcoin blake2s -pool etchash.eu.mine.zergpool.com:9997 -wal ############################ -pass ##############,c=BTC,mc=ETC,pl=0 -dpool blake2s.eu.mine.zpool.ca:5766 -dwal ################## -dpass ############,c=BTC -log 0 -wdog 0 -cdmport 4002 -gpus 2