when i click on memories for this person they do not open
When we are unable to duplicate what you are seeing in Family Tree, our first step is to advise you to do some housekeeping on your computer. Here are some articles from the Help Center about that:
If this does not help, please advise and we can offer further assistance.
What device, operating system, network connection and Browser are you using?
I could not duplicate Memories not opening for GMH8-F9D On Android 7.1.2 phone, WiFi, Familysearch Family Tree app 4.1.17 and Chrome 94.0.4606...
Chrome did lag more but it still opened.
We do need to have your equipment details so that we can try to troubleshoot the problem you are having. I see that others were able to open the Memories page for your ancestor, @JohnOakley Edward John Hudson GMH8-F9D. He only has one memory which is a parish marriage record, but it opened well for me in the current version of Chrome, in the current version of Firefox, and in the current version of Microsoft Edge from a Windows 10 operating system, so I don't believe the problem is with FamilySearch, but is related to the equipment you are using. I was not able to work from Safari since I do not use a MAC operating system, but my Family Tree app also opened the memory even in an outdated version of the Family Tree mobile app.
If you have not done so, please delete your temporary files and cookies as described in the knowledge articles that were provided by @CJTobler. You can sometimes also "refresh" your system by signing clear out of FamilySearch and then by rebooting your computer system. With the mobile app, you sometimes have to delete and then reinstall the mobile app to get the system to update pages.
Please reach out with more details if the suggestions provided through this discussion thread do not resolve your problem.