When launching some applications (1c, adobe) through RemoteApp, the splash window does not close. This window is on top of the rest.

Infrastructure:
RDS with HA:
RDS01: windows server 2019 version 1809 (17763.1935)
RDS02: windows server 2019 version 1809 (17763.1935)
RDS03: windows server 2019 version 1809 (17763.1935)
MSSQL 2016 for HA data
SMB share for user data
Tried solutions:
- use TCP for RDP traffic
- enable / disable hardware video adapters
- downgrade mstsc version
- using other versions of applications
A similar problem was considered here, but the solution has not appeared: https://social.technet.microsoft.com/Forums/ru-RU/9c617297-0acc-42be-8899-27b4b7854c7f/10531077-10801089109510771079107210771090-1086108210851086?2019=windows