Thank you for sharing the sample.
We have evaluated the presented scenarios while using the latest version of Aspose.Cells for Java 16.11.7, and we are able to notice both mentioned issue. Please find the ticket details as follow.
- CELLSJAVA-42095: Chart has been changed in the resultant HTML.
CELLSJAVA-42096: Formula has changed position in resultant HTML.
Please spare us little time to further investigate these matters and get back with updates in this regard.