Windows 10: RDS 2022 with Office 2021 word blank screen after inactivity only with touch screen client

We have a strange problem on our RDS servers.Servers are running Server 2022With office LTSC Standaard 2021 SPLAWhen we login with a client device with touch screen, and are working in outlook typing a message or in Word, te screen becomes blank/white after about 40 seconds of inactivity, see picture.As soon you become active, klik somewhere in the document or start typing screen becomes normal until you become inactive again.When we login to the same servers with clients without a touch screen it looks like there is no issue.I cannot find anything related on this topic/problem, please hel

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Touch screens

I can do 60 words per minute on my phone, perhaps more now as I've got used to the phone. ( htc desire z, using the stock onscreen keyboard)

Touch screen + predictive text I recon I could equal my keyboard typing speed. Maybe beat it depending on how advance the predictions are.

( hard to use predictive software on traditional keyboards as there is no way to quickly choose the suggested word, where as touch screen keyboards can have the suggested words appear above the function keys)

 

Touch screens

i can only do about 30 on my wildfire as at that point the processor starts to lag and i can end up being about 10-15 seconds ahead of what i'm typing

i would really like a spell check program that works in real time and as good as HTC's

 

Microsoft Remote Desktop (RD Client)

After closing the RD session on the iPad, you must press Ctrl+Alt+Del on the PC to resume the local session.