A Mac has a CA problem where some apps do not work while other apps still work normally. The available details do not include the failed app names, s, macOS version, type, or fix steps. The cause could involve an untrusted , an expired , or different checks in each app, but the exact cause cannot be confirmed from the available information.
Key points
Some Mac apps fail while other apps still work.
The issue is described as a CA problem, which points toward trust.
There is not enough public detail to confirm the or fix.