I've found this problem too.
I've tried to use CWM 22.214.171.124, TWRP 126.96.36.199 (Unofficial), Philz 6.19.3.
It doesn't have any recovery can mount USB storage.
Flash Philz 5.15.9 after this copy what you need and after this flash again latest TWRP CWM or Philz
Now, I work with your step every time that I flash rom. But I need to know how can I fixed or something better?
Can't you copy the ROM.zip through Android system? How long did you have patience to wait for sd card to show in your pc explorer?
Yes like @M@c|-|oR say before flash new rom use the old rom to copy files to your sd card my way is if you dont have working rom and is for critical moments
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