Spider-gwen evade Venom's basic attacts

Not sure why it happened but I noticed couple of times when I was not able to complete the 5-hit combo. In between spider gwen evade and slap me 5 hits.
Hit: notmal hit not special attack
Health of SG: welll above 60%
Health venom: 80%
Where: in Sinister lab
Buff on SG: Unblockable finale and 200% bleed damage
Frequency: happened 3 times
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Comments
I will try to record/snap and post next time it occurs.
Will note this too.
I thought Venom fails evade all the time. But good to know that it is locked behind a buff.