I am truly sorry, but the HP‑71B currently appears to be very unstable. Sometimes everything works perfectly with its HP‑IL extensions, and sometimes even running a simple BASIC program causes a crash.
I am working on this issue immediately in order to fix this instability as quickly as possible.
I plan to release version 2.10.1, including fixes for the most blocking bugs, within the next 15 days. I hope to have this instability resolved by then.
In the meantime, I have of course disabled the purchase of the HP‑71B package.
For subscribers, please do not hesitate to report any issues you encounter with the HP‑71B or other components.
You can be assured of my full commitment to tracking down and fixing all malfunctions. That said, I remain realistic: PockEmul is an extremely complex application, and there will always be edge cases.
Thank you to the community for your understanding.