Question Computer refuses to sleep

Mar 5, 2021
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My pc used to "go to sleep" without any issue.
latly ive install my windows on protable ssd drive, and since then "Sleep" is shutting down pc.
the option "sleep" is visible but it's actually shutting down the pc.

BTW: when i restart my pc through the internal drive (m.2 drive which is on motherboard) sleep mode is possible.
both win versions are 20H2