ds5 was fine after soldering, but within a month vibration broke

I had the stick replaced with a hall effect one at a repair shop. After I tested it, I saw that the cables for the motor and adaptive triggers (yellow, green, black, red) were reversed (green, yellow, red, black), which made the adaptive triggers motor go backwards so it didn't work correctly.

I resoldered the 8 cables in the correct order (I'm a beginner) and it worked fine for a while. After a month I noticed the haptic feedback wasn't working in multiple games, so I tested the controller again and found that the soft and heavy rumble no longer work (tested on different PCs, cables, ports, etc.).

I tried resoldering the motor cables again but it affected nothing. Tried resetting the controller and checked for firmware updates (there were none), didn't help.

What are the chances that whatever board damage I made didn't manifest until after a few days?

I didn't have alcohol to clean after my soldering the first time, and I left a bit of flux on the board before closing the controller again. I just dried it a bit with a tissue though.

the hall effect sticks did go crazy for a few days after I fixed the cables the first time, but it settled down on their own. Is this an indication of something?