React-Native - No identifers allowed directly after numeric literal

I’ve upgraded api, util, util-crypto and wasm-crypto, and made sure I import the relevant package at the top level as per the release note. And I get this runtime error that we’ve had in the past with BigInt linked: https://github.com/polkadot-js/common/issues/1253 and https://github.com/polkadot-js/common/issues/1245

I’ve been looking in the generated bundle for[0-9]_ or [0-9]n but didn’t find anything worrying. I’m looking more generally now, but the search has several thousand match.

One syntax I came across that could be problematic is 2e3 here for instance

          function b() {
            setTimeout(function () {
              return e(t);
            }, 2e3);

I’ll keep searching. And as usual with RN, no stack trace 🙄 my versions:

    "@polkadot/api": "^7.13.1",
    "@polkadot/reactnative-identicon": "^1.3.1",
    "@polkadot/util": "8.6.1",
    "@polkadot/util-crypto": "8.6.1",
    "@polkadot/wasm-crypto": "^5.0.1",