Yes, I believe something perhaps akin to this might have happened once (not often) before. I searched the forum before the first post and couldn't find a record of it...

In any case, I have today in a completely different empty directory done:

1) Install Zorro 1.83.2
2) Test Z3.80 - fails with Error 055 for each year 2010-2018 and "Error 055: no <Asset> 2010..2018 prices" for all 4 Assets (SPX500, NAS100, US30, XAG/USD)
3) Download and extract History_2010.zip
4) Test Z3.80 - reports Error 055: <Asset> history missing ..." for years 2016-2018 for all 4 Assets but Tests to ~55%
5) Download and extract History_2016.zip
6) Test Z3.80 - no Error 055 messages and Tests to ~33%, just as before

What now?

I posted the AssetsFix.csv from my install - does it match yours?

Would posting the log help? It's 253kB...

Thanks.