Unable to launch games/apps off secondary mounted drives.

I have mounted my secondary drives following these instructions https://universal-blue.discourse.group/t/auto-mounting-secondary-drives/970. They work as intended and auto mount after reboot however im having a strange issue where I cannot launch any steam games or apps of those drives unless I unmount and remount the drive manually which defeats the purpose of auto mount. Not exactly sure what would be causing this and any suggestions would be appreciated.
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