For Ethereum the value is correctly higher on the single profile, as it also includes SIA for dual mining, while it's not for the group profile. I will have to investigate if there is a problem with group profiles not including secondary coins correctly - that's the only scenario I can think of right now. I will get back to you on this.
Thank you.
I just witnessed how a switch from EHT+SIA to ETH+DCR didn't include the correct command line, even using my single profile. I checked the log and found where this happens. Only included the relevant part to see that it came from ETH+SIA (line 4, command at line 57), profitability for DCR got higher and then the switch happens at line 291 (command at line 330).
https://pastebin.com/99jGt4tAFirst of all, I did identify a scenario with Profile groups in combination with dual hashrates and the profit switcher that wasn't correct - so thanks for pointing that out before.
For the second scenario, it's important to understand that that the Profitability information in the log file is listing the primary hashrates. It might be that Decred primary hashrate is more profitable tha Sia primary hashrate, but you may have configured a different dual (secondary) hashrates for them, and when used together with Ethereum, it's their dual hashrates that is used for the calculation. Maybe I should log the dual hashrate profits as well?