FYI this issue was already reported here:
viewtopic.php?p=180501#p180501
Background:
https://answers.microsoft.com/en-us/win ... 60c87c6154
ExFAT is a case insensitive file system by design.
rename special Aaa Aaa.aaa stopped working for me
Re: rename special Aaa Aaa.aaa stopped working for me
I am sorry. I am having difficulty (on a couple of machines) formatting USB sticks to those two formats...