Rank Math SEO vs WP 5 update

One of my websites using Rank Math SEO plugin. In the last few days, it's rankings are decreasing. My site has been automatically updated to WP 5. Yesterday I updated Rank Math to the latest version.
I have a doubt that my rankings decreased because of the Rank Math plugin old version had a conflict with WP 5 version.

Anybody faced this scenario?

I don't think Rank Math is responsive for your ranking loss. Did you change your theme? Sometimes changing theme can affect rankings which recovers after a while.

eternalwarrior said:

I don't think Rank Math is responsive for your ranking loss. Did you change your theme? Sometimes changing theme can affect rankings which recovers after a while.

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I did not change anything other than the WP auto update to version 5