Tropico 4 Achievements getting registered late (57690)

I played Tropico 4 via Steam Play yesterday. The game runs very well with maximum settings and everything. However, I had a full cabinet of ministers, but the achievement did not activate. None of the achievements seem to activate. However, today when I opened the game, the achievements have been activated. Is there a delay with achievements when using Proton?

My system is a self-built desktop machine running Linux Mint 18.3 64-bit, Steam hardware report below:

Computer Information:
    Manufacturer:  Unknown
    Model:  Unknown
    Form Factor: Desktop
    No Touch Input Detected

Processor Information:
    CPU Vendor:  GenuineIntel
    CPU Brand:  Intel(R) Core(TM) i5-4590S CPU @ 3.00GHz
    CPU Family:  0x6
    CPU Model:  0x3c
    CPU Stepping:  0x3
    CPU Type:  0x0
    Speed:  3700 Mhz
    4 logical processors
    4 physical processors
    HyperThreading:  Unsupported
    FCMOV:  Supported
    SSE2:  Supported
    SSE3:  Supported
    SSSE3:  Supported
    SSE4a:  Unsupported
    SSE41:  Supported
    SSE42:  Supported
    AES:  Supported
    AVX:  Supported
    CMPXCHG16B:  Supported
    LAHF/SAHF:  Supported
    PrefetchW:  Unsupported

Operating System Version:
    Linux Mint 18.3 Sylvia (64 bit)
    Kernel Name:  Linux
    Kernel Version:  4.13.0-45-generic
    X Server Vendor:  The X.Org Foundation
    X Server Release:  11804000
    X Window Manager:  Metacity (Marco)
    Steam Runtime Version:  steam-runtime-beta-release_2018-06-14

Video Card:
    Driver:  NVIDIA Corporation GeForce GT 630/PCIe/SSE2
    Driver Version:  4.6.0 NVIDIA 390.67
    OpenGL Version: 4.6
    Desktop Color Depth: 24 bits per pixel
    Monitor Refresh Rate: 59 Hz
    VendorID:  0x10de
    DeviceID:  0xf00
    Revision Not Detected
    Number of Monitors:  1
    Number of Logical Video Cards:  1
    Primary Display Resolution:  1920 x 1200
    Desktop Resolution: 1920 x 1200
    Primary Display Size: 20.00" x 12.52" (23.58" diag)
                                            50.8cm x 31.8cm (59.9cm diag)
    Primary Bus: PCI Express 16x
    Primary VRAM: 2048 MB
    Supported MSAA Modes:  2x 4x 8x 16x 

Sound card:
    Audio device: Realtek ALC887-VD

Memory:
    RAM:  7916 Mb

Miscellaneous:
    UI Language:  English
    LANG:  en_US.UTF-8
    Total Hard Disk Space Available:  418139 Mb
    Largest Free Hard Disk Block:  38891 Mb
    VR Headset: None detected

ValveSoftware / Proton

Tropico 4 Achievements getting registered late (57690) #917