Hello alex_4e,
Welcome to Apple Support Communities!
If we understand your post correctly, you're not getting notifications from two of your apps but are receiving them then you open the apps. We'd like to help!
Go through the steps in the article below for using notifications. Ensure that the settings are set to how you want them.
Use notifications on your iPhone, iPad, and iPod touch
You may also want to check your restrictions to ensure nothing is preventing you from getting the notifications.
Use parental controls on your child's iPhone, iPad, and iPod touch
If you're still not getting notifications from the apps we suggest contacting the app developer.
How to contact an app developer
Let us know if you have any questions.
Thank you for using Apple Support Communities.
Take care!