If the Boot Camp partition doesn't mount in Tuxera NTFS, you can use a different NTFS tool instead. iBoysoft NTFS for Mac is an excellent alternative. You can download it from the button below to mount your Boot Camp partition. It also allows you to check and repair errors on the Windows partition.
If the partition still won't mount, the resizing process has likely caused issues with your partition scheme. Try using GDisk's expert menu to delete the GPT. Or, back up your data, erase your drive, and reinstall the OS.
