Reposting this from the modpack tracker:
EnigmaticaModpacks/Enigmatica6#4126

Hi Rodg, ty for the hint, let me take a look in the E6 thread. Cheers,-

(Fix as described in the E6 thread, fix version redstonepen-1.16.5-1.0.7). Cheers Rodg,-

Just tried the new version, and there is still some disconnection issue, but it seems easy to work around.

Once the track is connected and working, it seems ok, and you can fix it by re-doing the top side segment.

Uiui. Just saw the difference of your setup and the fix that I applied, and reproduced that. The bug happens only if the RS power source is off - at least in my dev environment. That smells like a change detection problem.

Ahhh, it was simpler, I accidentally removed the update recursion while testing and did not add it again ("bug exchange" ....) This time I gonna upload the pre-jar here first - you make the impression of an excellent tester ;)

Oky, I found yet another small thing and hope it's now all done and dusted. redstonepen-1.16.5-1.0.8-b1 is the MC1.16 version, currently in approval on Curse. I'll close, and if we to find something, reopen. Cheers,-

Checked in-game, seems good now! Thanks!