Have been having this issue with multiple different cryptos. The wallet notices the coins are there but it is not finding the value of them, resulting in transactions not going through because the wallet labels the worth of the coins as $0.
I fixed this with AVAX by putting in the coingecko API, which is avalanche-2. This makes the wallet recognize the proper value.
Have been unable to find a solution for FTM. The coingecko API is just fantom, which does not work for me. Tried resetting, removing chan and re-adding, updating browser, etc.
EDIT - it apears the AVAX solution is no longer working and it is also saying ETH is valued at 0 on ETH chain.