seems a shadow ban after the strike, give it a week or 5 days to disapear, is a small punishment for going against the tos, continue uploading content as usual and ask a friend or someone else with a different wifi connection to search your videos or account just to confirm if is a shadow ban.
I know that certain royalty free sounds request at least 10 seconds at the beginning or the end of the video mentioning where you get the audio from, as an example free sfx ask you to put links to their website or given them credits in the video for the audio you are using to avoid copyright strikes from them.
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