@Bigbassett_ Some posts from new members are approved manually. You can reply. Your posts might just take a few minutes to appear - as this one has, that I've just approved.
Bigbassett - I've only just seen your thread. There is an issue, such as you described happening to an incredibly tiny percentage of members, using the forum via the mobile app. We are working with the app developers to resolve this, but have no definitive date yet.
In the meantime, if you could continue to use your browser,that would be helpful. Of course, you can always try the app from time to time.