[TCG Custom Game] Servine (bw1-4) cannot retreat even though it very much should be able to

[rec01n]

https://ptcg.pnine.me/battle-tcgcustomgame-1215, turn 4 (room got deleted, oops. took screenshots though!)

The board as of turn 4 and the game log up until that point

Skyarrow Bridge reduces Servine's Retreat Cost to 0, yet after attaching an Energy to Feebas and trying to tap on Servine to retreat, it instead says "This Pokémon doesn't have enough energy to attack." I don't think that's supposed to happen. Please help.

 

[Arcticblast]

Skyarrow Bridge reduces the retreat cost of Basic Pokemon.

rec01n

 

[rec01n]

you have no idea how embarrassed i am right now i'm so sorry

oh my god and now i've actually found something that doesn't work right but i don't even want to say it because of this aaaaaghh

 

[P9]

its fine dont worry about it, also make sure to upload the replay first if you find a bug in it, thanks.