SIM borders going nasty again?

I'd be interested in knowing if this is a general thing, or just local?

Moving from one sim into another I'm entering a sim via it's East border and being instantly flung straight to the West border. Not always, but often enough that it's becoming rather annoying.

Also, yesterday I was testing a new vehicle script for an upcoming project. It performed OK, except on certain SIM borders crossing which caused both myself and my passenger to crash HARD.

So, we tried AV flying the borders and encountered massive glitches on crossing.

Then tried crossing in a very well scripted and stable flying vehicle - we both crashed HARD.

Now this has not previously been the case with any of the borders in question, until the latest update.
All the borders in question have one thing in common - though the crashes, glitches and flings occur on 'normal' SIM/SIM borders, ALL the affected sims have void sims attached to at least one border... And the void sims in question seem to be fond of exhibiting the 'OMG! Where did the water go?' bug where water level seems to drop to 50m below normal water level.

So, something odd, it may be my locality, or may be grid wide, but something nasty's happening. Ideas? Feedback?

Whoa! I think that just happened to me this morning. I was flying over the corner of three sims where three bulk auction owners had horribly inconsistent ideas of how to texture and terraform, and ran into some redlines... and all of a sudden I was one sim over. I thought I'd been confused about where I was, but given how distinctive the corner was I couldn't figure out how it'd happened.

Possibly... sim corners are always a bit high risk though

It just seems to me that straight sim borders have suddenly become 'difficult' again, certainly in my area, after a long period of steadily improving performance.