Circom Public Inputs Example not working, Snarkjs 0.7.4, Circom 2.1.9

[jonas089]

[ERROR] snarkJS: Error: Scalar size does not match
    at _multiExp (/opt/homebrew/lib/node_modules/snarkjs/node_modules/ffjavascript/build/main.cjs:4978:19)
    at WasmCurve.multiExpAffine (/opt/homebrew/lib/node_modules/snarkjs/node_modules/ffjavascript/build/main.cjs:5015:22)
    at groth16Prove$1 (/opt/homebrew/lib/node_modules/snarkjs/build/cli.cjs:5768:33)
    at async Object.groth16Prove [as action] (/opt/homebrew/lib/node_modules/snarkjs/build/cli.cjs:12975:36)
    at async clProcessor (/opt/homebrew/lib/node_modules/snarkjs/build/cli.cjs:481:27)

for circuit:

pragma circom 2.0.0;

template Multiplier2(){
   //Declaration of signals
   signal input in1;
   signal input in2;
   signal output out;
   out <== in1 * in2;
}

component main {public [in1,in2]} = Multiplier2();

with inputs:

{"in1": "3", "in2": "11"}

Is this a known issue? I followed the tutorial exactly yet it does not generate a proof. If I make either of the inputs private it works e.g. component main {public [in1]} = Multiplier2(); is ok.

See example for reference:
https://docs.circom.io/circom-language/signals/

I suspect this might be due to the two inputs forming a quadratic constraint. When I introduce a third input and make it public it works again.