Hey all! So i've had this problem for a couple of days now which i have tried almost everything i found in these forums to no avail.
Finally i fixed it this morning and thought to share it with you, it might help some of you.

My issue, in summary, was that i sent an amount to another wallet with very low fee (i was oblivious to the effect of fees before this problem). Then the transaction was dropped the next day and i resent it with low fee again. The second transaction was stuck then. I was left waitting for 4 days, tried almost every solution i found, excluding purging the transaction via -zapwallettxes, reinstalled and recovered wallet after i deleted all files but nothing seemed to work.
Today, i thought of sending a small amount to myself to see if anything happens and to my surprise. the first (oldest) transaction which my wallet had shown as dropped was confirmed and the second attempt was marked as "double spent". I don't know how that happened but it worked. Hope it helps.

I have the same issue and Quickseller says it looks like a double spend attempt. How did you solve this?

Nevermind, figured it out. Sorry for spam. 

Hello. I reinstalled Electrum a few mins ago and tried to recover through seed code. Some grayed out transactions appeared, which were old transactions of mine but not the latest one, which was also stuck due to low fee. What do i do?

Hello everyone. As the title says, im having problems with a transaction. Spend the past two hours digging through solutions but nothing seems to work.

I use Electrum which marks the transaction with an attention mark and says low fee. Tried CPFP but it fails. When i input a reasonable fee, it says "Max Fee Exceeded" (while i have more balance in my wallet).
If i put a fee within the range Electrum accepts it, it gives me a 64:dust error.
Transaction seems to have been dropped from blockchain since it's already a couple days old but i uploaded it again manually.
Changing servers doesn't work.
Deleting the wallet and retrieving it through seed doesn't work.
A few other methods i can't recall, still didn't work.

Sorry if the text is hastily written but im starting to get frustrated with this thing.

Transaction ID
7c6fae0f73ecdd45eecd0571a742b62f2469a5dbb3b1107d0f42bc6cc596fe67

Thanks...

Καλησπέρα σε όλους! Όπως γράφω, το chip-chap (και ο μοναδικός μου τρόπος αγοράς btc) γράφει server error. Υπάρχει κανένας εναλλακτικός τρόπος?
Προτύτερα αγόραζα απο localbitcoins αλλά η καθυστέρηση των τραπεζών δεν με βολεύει και τόσο.
Ευχαριστώ!