Unfortunately, the method you mentioned does not solve the following problem.
The “amp-img” tag cannot appear as a subtag of the “amp-story-player” tag.
It might be because of the antispam plugin. If it is not up to date.
There were those who wrote the same problem before, but no solution was offered. This is a serious problem and we are waiting for an update on it.
I am also having the same problem. That’s why Web Stories is throwing an error in Google Console. When I examine the Console error, I see that the AMP plugin is causing the problem. There is a mismatch caused by the “amp-img” and “amp-story-player” tags.