I have make full wipe before flashing this rom and have try it more than once but still facing the same situation.
Try formatting your card, then copy back Lee ROM, patch and yes after copying back all.
Use the LeeDrOiD_EXT4_FULL_WIPE.zip before flashing the v5.1 rom. Do a full reboot play around a while before patching up with LeeDrOiD-HD-V5.1.0-V5.1.1-PATCH.zip.
I know the v5.1 does this automatically but I use the full wipe script before upgrading to v5 rom. I used the first V5.0 before directly upgrading to v5.1, but no harm trying to install version v5.0 first then upgrade to v5.1 as there is almost like 30mb stuff being removed from the v5.0 if you guys notice that.