I use galaxy S7 and used external SD card. it was ok to copy and write.

yesterday I changed new sd card. and then Solid explorer can't do copy.

So I delete it and install new. but still can't do it.

the time new intall, 2times of permission required. and I did it.
but when make copy, it said can't find before sd card number.
(this phone makes random number to sd card. and new sd card has another number now.)

Just Solid try to find before number of sd card again and again.
and can't do copy or move files.

Even galaxy official folder problem can't do copy sd card also.

Just can read. that's all.

Why google made OS like this really terrible things do for users.

Is there any idea for me to do solve this problem??