Hey guys, I have a weird situation regarding compressing files in AC using CM. Hope someone can clear this up.
I moved all my AC files from internal HDD to external SSD 2 years ago for more space and faster loading. While on the HDD it was compressed, but after moving to SSD it got decompressed. At that point I still have plenty of space on the SSD so I didn't bother compressing just yet.
Fast forward last week, my 1TB (effectively 931 GB) SSD is full, so I let the compression run for 12 hours (250,000+ files

). Managed to squeeze 779 GB of compressible files to around 171 GB (around 22% ratio).
This week, I added new mods as usual (maybe around a dozen cars), and run the compression to pack the new mods. Back in the old days of using HDD I do this every week and it takes only a short amount of time because it only needs to compress the new stuff (usually 1000-2000 files). But to my surprise CM shows 9,000+ files to be compressed, and the compression ratio has expanded from 22% to 44%. Instead of 171 GB the data now takes up 344 GB

Sure the new mods add space but it won't be more than 1-2 GB max. It looks like some of the old compressed files had become decompressed by itself (mostly tracks looking at the file names).
How is this even possible? Is it because the data is on SSD instead of HDD? Also it might just be me but the compression takes way longer now to progress. Is it double compressing already compressed files? I'm also worried that one day everything might decompress by itself and the data will become corrupt because it exceeds the SSD's capacity.
I can just leave it and not worry because I still have 432 GB of free space left, but I just wanna know if anyone has experienced something similar and how to solve it because it's certainly a bit odd. I don't want to have to re-compress all of my tracks every week, just the new mods that are recently added.