Roku Media Player App will *NOT* play ,WMA files from USB which is what I wanted.
WMA files have never been a supported format on Roku devices. The only supported containers are MP4, MOV, MKV and TS/M2TS. But even with a supported container it's still possible to have unsupported codecs used.
This Roku support article spells it all out.
I remember seeing in the support article mentioned by @atc98092 a referenced note that WMA audio support would be deprecated/removed (sunset) in 12.5. (The referenced note has now been removed since this article was updated a couple of days ago).
Some of the older support articles (like TCL Roku TV support) are still showing WMA audio as a supported audio media type so will need to adhere to the official updated Roku documentation.
-----
You may want to look into using ffmpeg to just change the WMA into a supported container and see if that works for you. (certain ffmpeg commands will simply change container without the need for reencoding.)
Here is an introduction/overview link to ffmpeg if you are new to it. (https://opensource.com/article/17/6/ffmpeg-convert-media-file-formats).
----
Edited to add. Looks like WMA was deprecated in 10.5 and then sunset in 12.5.
https://developer.roku.com/docs/references/deprecated-apis.md https://developer.roku.com/docs/references/scenegraph/media-playback-nodes/audio.md