I have found an issue when deleting the first section and only section in a pptx file.
I attach a simple code example.
Note: the pptx file was created using Office 365 Pro Plus, version 12527.21912 Click-to-Run).
RemoveSectionExample.zip (33.2 KB)
Welcome to our community! Thank you for the issue description. I reproduced the error and logged the issue with ID SLIDESNET-42652 in our tracking system. Our development team will investigate this case. You will be notified when it is fixed.
The issues you have found earlier (filed as SLIDESNET-42652) have been fixed in this update.