To solve my problem here: Applying JaCoCo to all Android Studio gradle modules, I applied the solution here. This works fine so far for modules with plugins {
solution-folders
entity-framework-core-6.0
flash-media-server
emcc
symfony3.x
reflow
aioinflux
jsqlparser
bolts-framework
php-pdftk
git-gui
onmousemove
polygon
adobe-captivate
cassandra-4.0
cloudevents
multipass
iphone-8
mklocalsearch
ag-grid
sts-securitytokenservice
php-7.3
ixguard
apache-commons-math
delivery-status-notification
pys60
if-modified-since
eclipse-emf
abaddressbook
internet-explorer-9