False life buggy?

[Menry]

Are temp HP buff spells bugged? First time casting false life gives my +7HP but recasting it after taking damage does nothing.

[Alealexi]

Temp HP buffs won't stack. Part of the 5e rules.

If you rolled 7 first and then rolled 3 you will only have 7 as that was the higher value. If you rolled 10 then you will lose the 7 and keep the 10.

[Menry]

What I mean is the following:

1. I have 2 Temp HP left of False Life after getting hit, casting it again does not increase my HP back to 7 Temp HP.

2. Sometimes when getting hit and losing all Temp HP, the buff still stays, so now I have the false life buff with +0 Temp HP, casting it again does nothing.

You can't tell me this is how it works in DnD.

[Alealexi]

Yeah that does sound like a bug.