Guys are right. Chances TAC would help you on R77.30 are literally non-existent and your best bet is to upgrade to supported version, which is currently I believe R80.40
https://www.checkpoint.com/support-services/support-life-cycle-policy/
Having said that, I dont believe this is a version issue, because I just tested with my iphone 13 on R81.10 fw version and it was exact same problem, so I have a feeling its not fw problem, but rather the app on ios 16.xx
You may want to follow below sk and see if it yields anything useful as far as long if you are not able to upgrade any time soon.
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solut...
Best,
Andy
"Have a great day and if its not, change it"