I'll join you on this one as I had nearly the same question. I have the software running very well right now. Everything works great except guiding.
What you are seeing is what I see - when you start guiding it goes into calibration and the steps are HUGE. Trying to move my experience of PHD into the internet guider of Ekos isn't working
During calibration my mount (Mach1 with 6" apo / 912 with .75FR). has to slew during each step! (hahahah) IT star hops across the sky and the dome is chasing it.
Oddly on the first night after a lot of this hopping I did get it to work (not sure how).
Last night I tried again and star hopped huge amounts. I lowered values hoping to hit on step size and no help. I then ran out an installed a ST4 cable. (I always used direct to mount before). AT first it star hopped to far. I did find a setting buried in the mount driver settings to turn on "pulse guide" and I think that may have solve it. Not sure but it started working (it calibrated in small steps) then did a fair job guiding at .8 RMS. Then got worse all night but the full moon did rise.
I also setup and tried PHD on the PI and I liked how that was suppose to work, but it didn't. The camera kept losing connection. "I THINK That may be due to my distant wifi connection". It's usually fine but can come and go for brief hiccups. Though my IP camera was showing it was stable?
PHD (while I preferred it) seemed futile for some reason so I went back to the internal guide code. Not sure if it was using the ST4 or direct (is there a switch?) I looked for one but again such things are buried in various places.
1. cllicking options while in the guider page brings up (2 more settings areas) hidden.
2. the indi drivers have things scattered. (mount has, guide camera has guide settings).
3. of course the primary guiding tab has it's options.
4. There are hidden setting under the guide pulse target graphic as well.
(changing them seems to have no effect).
I've watched Jasem's video 3-4 times. No help really because it doesn't go into what each setting does or what to do if you're steps are great giant strides.
TO continue learning the software I did some short test seq. Most had wiggle guiding errors. I did manage a decent first frame. The rest had zig zags. So I too have the same issues and some!
Sometimes it would seem to get stuck and would error in a line.
I set params as logic would suggest.
More weirdness. But seemed to be working? messing with numbers
corrections aren't pulses? they're wide continuous bars?
I typically guided at .35 tot rms average .26 - .38 typically wit PHD on windows.
Of course I can do nothing more than play/text until I can guide. But EVERYTHING else is working wonderfully.