Hello,
Thank you for using PhotoScan.
Please use "Aligned Chunks" toolbar button to display all the aligned chunks at once.
The chunks support in PhotoScan is still an experimental feature, and we haven't tried to process so many chunks yet.
Can you please provide more details about your work flow and requirements? This will help us to improve this functionality in the future releases.
Please send the details to support@agisoft.ru if you are interested.
With best regards,
Dmitry Semyonov
AgiSoft LLC