A fix has been applied to the issue and we are monitoring the situation.
Posted Dec 04, 2019 - 11:21 CET
Identified
We have identified an issue that apps are scaled down to 2Gb of memory after a deploying a new version. We recommend not to deploy apps until this issue is resolved. Workaround is to manually scale your app in the Developer Portal, two steps may be required. We are working on solution.