AcroCEF.exe constantly crashing while Acrobat is open on Server 2025

We have a customer running a number of RDS servers (Server 2025). Last week we observed all users getting a flashing blue circle cursor on their sessions and could see from Task Manager and Event Viewer that AcroCEF.exe was constantly opening, crashing, causing a WEFault.exe instance and then opening again, crashing and repeating.

As soon as Acrobat 64-bit was shut for the user the cursor stopped flashing. At the time the servers were running Adobe Acrobat 64-bit version 25.001. On server had been rebuilt more recently (for a separate issue) and was not experiencing the flashing cursor or constant AcroCEF crashes, this server was running 26.002.22031. If AcroCEF.exe was renamed with.disabled the flashing cursor was not present.

Due to this, over the weekend, we updated all RDS servers to Adobe Acrobat 64-bit v26.002.22031.

Mostly this has resolved the issue but we have had two users have the flashing cursor, along with the crashes visible in Task Manager and Event Viewer:

Faulting application name: AcroCEF.exe, version: 26.2.22031.0, time stamp: 0x6acda15e
Faulting module name: libcef.dll, version: 112.7.0.0, time stamp: 0x631bae2d
Exception code: 0x80000003
Fault offset: 0x00000000034b4e33
Faulting process id: 0xBFC4
Faulting application start time: 0x1DD65323F1CE1D8
Faulting application path: C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\AcroCEF.exe
Faulting module path: C:\Program Files\Adobe\Acrobat DC\Acrobat\AcroCEF\libcef.dll
Report Id: 1742c1d4-48ab-4d80-809b-0af076389312
Faulting package full name: 
Faulting package-relative application ID: 

This is very similar to the crashes shown last week with 25.001 release (with the relevant version reflecting the installed release).

For both users I connected to their machine, confirmed the behaviour and then closed Acrobat. On relaunching Acrobat there was no flashing cursor or cycling crashes, even when reproducing what they had done before.

Is this something you have seen before? Is this likely to continue now they have been updated to the latest release? For information, the RDS servers have full Acrobat installed but it is always run as Reader as not all users have full Acrobat licenses and we have found that the moment anyone signs in to use full Acrobat, no-one without a license can use Acrobat as Reader on that RDS until we uninstall it and start from scratch again.