elevated levels of this error occurring on RC/canary

(https://cdn.ampproject.org/rtv/031908061758110/v0.js:226:24) at zj.f.scheduleLayout (https://cdn.ampproject.org/rtv/031908061758110/v0.js:309:40) at HTMLElement.b.toggleFallback (https://cdn.ampproject.org/rtv/031908061758110/v0.js:280:345) at Km.f.toggleFallback (https://cdn.ampproject.org/rtv/031908061758110/v0.js:104:103) at https://cdn.ampproject.org/rtv/031908061758110/v0/amp-ad-latest.js:23:464 at mutate (https://cdn.ampproject.org/rtv/031908061758110/v0.js:312:185) at bn (https://cdn.ampproject.org/rtv/031908061758110/v0.js:512:234) at Ym.f.Qh (https://cdn.ampproject.org/rtv/031908061758110/v0.js:511:268)

ex. page https://gaadiwaadi-com.cdn.ampproject.org/v/s/gaadiwaadi.com/heres-is-why-we-didnt-review-the-kia-seltos/amp/?amp_js_v=0.1

@zhouyx @lannka can ya'll triage this for severity/priority?