When we first hit the issue, it turned out our horizon support contract had lapsed for a couple of weeks, or I would have opened a ticket straight away. We are dead in the water with all client PCs that install the 2111 version. Does not matter what OS version or build is on the client PC, and we have a mixture of Server 2016 and Win 10 Enterprise remote systems. We don't have the option of PCoIP, and a couple of our key applications don't perform well over RDP, so we are only using BLAST.
Any remote session is totally unusable until we roll the client version back to 2106. We don't get one or two key repeats, we get thousands, and no matter how long the session is open for, the repeats never stop. As others have said, disabling typematic does fix the issue, but makes the system unusable in other ways because key repeats are not possible at all.
Our staff are all working from home, so we can't prevent them upgrading. We've repeatedly sent out messages not to do so. We're getting a couple of support incidents a day to fix the issue on a home PC.
