initial install fails due to invalid argument

$ ./emsdk install latest
Resolving SDK alias 'latest' to '3.1.7'
Resolving SDK version '3.1.7' to 'sdk-releases-upstream-d0e637fe48197587d981f79e8114757731d0c2a9-64bit'
Installing SDK 'sdk-releases-upstream-d0e637fe48197587d981f79e8114757731d0c2a9-64bit'..
Installing tool 'node-14.18.2-64bit'..
Downloading: /cygdrive/c/dev/emsdk/zips/node-v14.18.2-win-x64.zip from https://storage.googleapis.com/webassembly/emscripten-releases-builds/deps/node-v14.18.2-win-x64.zip, 30570907 Bytes
Unpacking '/cygdrive/c/dev/emsdk/zips/node-v14.18.2-win-x64.zip' to '/cygdrive/c/dev/emsdk/node/14.18.2_64bit'
Unzipping file '/cygdrive/c/dev/emsdk/zips/node-v14.18.2-win-x64.zip' failed due to reason: [Errno 22] Invalid argument: '\\\\?\\\\cygdrive\\c\\dev\\emsdk\\node\\unzip_temp'
error: installation failed!

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my info*
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- running commands in cygwin
- node 14.18.2 is already installed on my machine (windows 10)
- have python 3.8 and is added to path
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Could I remove the need to download and install a nodejs version that I already have?
I am looking to see how others are handling this and maybe this is a system setup issue.
Any help or pointers are appreciated.

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** update ***
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After switching to the windows command prompt and adding the paths to emsdk, I was able to install the latest tools.
This is an issue with installing within cygwin and not emsdk. Maybe there is a way to fix it down the road if others experience similar issues.