2GB+ dotCover file

Revieving an old issue we newer did resolve - see history at https://teamcity-support.jetbrains.com/hc/en-us/community/posts/206582209-dotCover-generating-1-6GB-coverage-file

We now have a dotCover report at 2.7GB and the hint regarding annotating all generated code with the appropriate attribute is a good hint. However it seems that all generated code already has this attribute. Can you help trouble shoot this issue based on the uploaded files in the above post? I can upload a new file, if necessary.