@Mark_Schormann1 Last we talked, you said your data set was 150-300 full resolution images with 15-20 submissions per day. It's just a lot for App Engine's data store to handle and so you might be running into concurrency issues. Deleting tables isn't recommended, but it might be your only option at this stage. Other options:
- Moving to a cloud server backed by PostgreSQL or MySQL. This is what we suggest in the docs at https://docs.opendatakit.org/aggregate-deployment-planning/#dataset-size
- Try ODK Central v0.2 Beta which will require you to rework you downstream scripts, but would perform much better.