Bug: Freeze on raw data load

With files such as

P:\aerosols\private\Kotiba Malek\Summer\Penn State 19\Full Data Set\OZONE (200), VOC (150) MASTER FILE\Ozone (200), VOC (150), wet 61%\Analysis with new chemics
P:\aerosols\private\Kotiba Malek\Summer\Penn State 19\Full Data Set\OZONE (200), VOC (150) MASTER FILE\ozone(200), VOC(150), dry\Analysis with new chemics

See attached error logs