In june I built and uploaded an aab to the google play store. Now, I'm trying to update my older apps, but I can't even run the apk on my phone cause it's a wrong package due to the 'Warning: Failure in Signing Android apk' error. I don't understand how this could be the case when everything was working fine in June. I don't think I updated my java version, but I've read somewhere it could be caused by a java version that doesn't support RSA-1024 certificates. I'm using Animate CC and latest AIR 22.214.171.124.
I'm using Java version 8 update 371 (build 1.8.0_371-b11).