stupid game lag keeps deleting portals

TLDR Walked from The Quarry to Rotten Core THREE F'ing times because stupid game lag keeps deleting portals

I've played a good lot by now that I have maybe 20-30 characters total. I usually play on the SG server and I am familiar with how bad the latency can be at times. I mention this to point out any doubts that I have not developed good practice of dropping portals regularly to save my location in case the SG server or my ISP fucks me over and kicks me to the login screen.

And today I had the worst experience of getting kicked multiple times from The Rotten Core in Act 9. This aint a problem or a big deal, except every time, I find the portals I drop missing from the Act 9 town or on the instance where I put it. So I had to walk from the quarry to the gooddamn belly to the goddang rotten core where everything is freaking linear maps. Its really frustrating and this would have not been an issue if only:

A. theres a gdang waypoint near sin on the black core lobby
B. fix your freaking game to not erase portals everytime the server kicks me to the login screen

Apologies for the language but I want to make a point how annoying the whole thing is happening simultaneously.