Foundry test withdrawal function will have error on and off?

[linghuccc]

When testing withdrawal function, sometimes I get "EvmError: Revert" or "Invalid data" error which causes withdrawal function test fails.

But if I run test a few more times without any changes to the codes, the error might just disappear.

However, if I run test some more times, the error might come up again. Is this normal?

[linghuccc]

I have just done some rounds of tests again. Below are the results:

Round 1: no error;

Round 2: PRECOMPILE error from user withdraw function:
├─ [8937393460516693753] MyContract::withdraw()
│ ├─ [0] PRECOMPILE::blake2f{value: 404098526}()
│ │ └─ ←
│ └─ ← "Withdrawal failed"
└─ ← "Withdrawal failed"

Round 3: Invalid data error from admin withdraw function (different withdraw function from the one in round 2):
├─ [7580] MyContract::adminWithdraw(VM: [0x7109709ECfa91a80626fF3989D68f67F5b1DD12D])
│ ├─ [0] VM::fallback{value: 24508}()
│ │ └─ ← "Invalid data"
│ └─ ← "Withdrawal failed"
└─ ← "Withdrawal failed"

Round 4: no error.

Really wonder why withdraw function having errors on and off...