Not sure if this is a known bug but apparently whenever I keep an instance of FFXI alt-tabbed while using Windower, It'd crash within 5~15 mins. This also happens when 2-boxing.
Only time I had this issue was when using an AMD RX 480 graphics card. After a period of time whilst multi-boxing, all instances would crash randomly. Seemed to be a driver issue with the RX 480 range, so I returned the card and bought a 1080 instead. I know Byrth had the same issue with his card, I think it was a RX 460.
Not sure if this is a known bug but apparently whenever I keep an instance of FFXI alt-tabbed while using Windower, It'd crash within 5~15 mins. This also happens when 2-boxing.